linux-3.9.3 - hit limit of 255 usb->serial devices

[Tobias Winter <tobias@xxxxxxxxxxxxxxx>]

Hi there,

since my propblem is with usb to serial adapters I was unsure if this is
the right place. If not, please let me know.

After equipping a server with a lot of ftdi singleport usb2serial
devices, I ran into a serial device limit that is included in
include/linux/usb/serial.h .

The limit of devices seems to be 255, resulting in ttyUSB254 to be the
last supported device.

The codesnippet in question is:

#define SERIAL_TTY_MINORS 254 /* loads of devices :) */
#define SERIAL_TTY_NO_MINOR 255 /* No minor was assigned */

I successfully modified it to support 256 devices and fail gracefully
afterward:

#define SERIAL_TTY_MINORS 256 /* loads of devices :) */
#define SERIAL_TTY_NO_MINOR 255 /* No minor was assigned */

That results in the following dmesg output:

[..]
usb 1-8.4.4.4.3: Detected FT232BM
usb 1-8.4.4.4.3: Number of endpoints 2
usb 1-8.4.4.4.3: Endpoint 1 MaxPacketSize 64
usb 1-8.4.4.4.3: Endpoint 2 MaxPacketSize 64
usb 1-8.4.4.4.3: Setting MaxPacketSize 64
usb 1-8.4.4.4.3: FTDI USB Serial Device converter now attached to ttyUSB254
hub 1-8.4.4.4:1.0: port 4, status 0101, change 0000, 12 Mb/s
usb 1-8.4.4.4.4: new full-speed USB device number 91 using ehci-pci
usb 1-8.4.4.4.4: ep0 maxpacket = 8
usb 1-8.4.4.4.4: default language 0x0409
usb 1-8.4.4.4.4: udev 91, busnum 1, minor = 90
usb 1-8.4.4.4.4: New USB device found, idVendor=0403, idProduct=6001
usb 1-8.4.4.4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-8.4.4.4.4: Product: USB <-> Serial
usb 1-8.4.4.4.4: Manufacturer: FTDI
usb 1-8.4.4.4.4: usb_probe_device
usb 1-8.4.4.4.4: configuration #1 chosen from 1 choice
usb 1-8.4.4.4.4: adding 1-8.4.4.4.4:1.0 (config #1, interface 0)
ftdi_sio 1-8.4.4.4.4:1.0: usb_probe_interface
ftdi_sio 1-8.4.4.4.4:1.0: usb_probe_interface - got id
ftdi_sio 1-8.4.4.4.4:1.0: FTDI USB Serial Device converter detected
usb 1-8.4.4.4.4: Detected FT232BM
usb 1-8.4.4.4.4: Number of endpoints 2
usb 1-8.4.4.4.4: Endpoint 1 MaxPacketSize 64
usb 1-8.4.4.4.4: Endpoint 2 MaxPacketSize 64
usb 1-8.4.4.4.4: Setting MaxPacketSize 64
usb 1-8.4.4.4.4: FTDI USB Serial Device converter now attached to ttyUSB255

If any further devices are connected, I get the expected error that no
more free sedrial devices are there.

hub 4-1.1:1.0: state 7 ports 4 chg 001e evt 0000
hub 4-1.1:1.0: port 1, status 0101, change 0000, 12 Mb/s
usb 4-1.1.1: new full-speed USB device number 89 using uhci_hcd
usb 4-1.1.1: ep0 maxpacket = 8
usb 4-1.1.1: default language 0x0409
usb 4-1.1.1: udev 89, busnum 4, minor = 472
usb 4-1.1.1: New USB device found, idVendor=0403, idProduct=6001
usb 4-1.1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 4-1.1.1: Product: FT232R USB UART
usb 4-1.1.1: Manufacturer: FTDI
usb 4-1.1.1: SerialNumber: A500EG03
usb 4-1.1.1: usb_probe_device
usb 4-1.1.1: configuration #1 chosen from 1 choice
usb 4-1.1.1: adding 4-1.1.1:1.0 (config #1, interface 0)
ftdi_sio 4-1.1.1:1.0: usb_probe_interface
ftdi_sio 4-1.1.1:1.0: usb_probe_interface - got id
ftdi_sio 4-1.1.1:1.0: FTDI USB Serial Device converter detected
ftdi_sio 4-1.1.1:1.0: No more free serial devices
ftdi_sio: probe of 4-1.1.1:1.0 failed with error -5
hub 4-1.1:1.0: port 2, status 0101, change 0000, 12 Mb/s
usb 4-1.1.2: new full-speed USB device number 90 using uhci_hcd
usb 4-1.1.2: ep0 maxpacket = 8
usb 4-1.1.2: default language 0x0409
usb 4-1.1.2: udev 90, busnum 4, minor = 473
usb 4-1.1.2: New USB device found, idVendor=0403, idProduct=6001
usb 4-1.1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 4-1.1.2: Product: FT232R USB UART
usb 4-1.1.2: Manufacturer: FTDI
usb 4-1.1.2: SerialNumber: A500EG07
usb 4-1.1.2: usb_probe_device
usb 4-1.1.2: configuration #1 chosen from 1 choice
usb 4-1.1.2: adding 4-1.1.2:1.0 (config #1, interface 0)
ftdi_sio 4-1.1.2:1.0: usb_probe_interface
ftdi_sio 4-1.1.2:1.0: usb_probe_interface - got id
ftdi_sio 4-1.1.2:1.0: FTDI USB Serial Device converter detected
ftdi_sio 4-1.1.2:1.0: No more free serial devices
ftdi_sio: probe of 4-1.1.2:1.0 failed with error -5

and so on.

Output of `lsusb | sort` with 256 usb2serial devices connected:
http://pastebin.com/wqrYUbwZ

In case you end up agreeing with me that there are no reasons to limit
the devices to 255, would you be inclined to fix this in the main kernel
tree? Do I have to open up a bug somewhere?

I also tried increasing the numbers further but I run into rollover
issues as the kernel tries to reassign ttyUSB0 ttyUSB1 which is already
taken. It seems without some other modification 256 devices is the limit?

Thanks for your efforts!

Tobias

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 006: ID 058f:6254 Alcor Micro Corp. USB Hub
Bus 001 Device 007: ID 0451:2046 Texas Instruments, Inc. TUSB2046 Hub
Bus 001 Device 008: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 009: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 010: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 011: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 012: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 013: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 014: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 015: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 016: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 017: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 018: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 019: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 020: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 021: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 022: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 023: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 024: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 025: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 026: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 027: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 001 Device 028: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 029: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 030: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 031: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 032: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 033: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 034: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 035: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 036: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 037: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 038: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 039: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 040: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 041: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 042: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 043: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 044: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 045: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 046: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 047: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 048: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 049: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 050: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 051: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 052: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 053: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 054: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 055: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 056: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 057: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 058: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 059: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 060: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 061: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 062: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 063: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 064: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 065: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 066: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 067: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 068: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 069: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 070: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 071: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 072: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 073: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 074: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 075: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 076: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 077: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 078: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 079: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 080: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 081: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 082: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 083: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 084: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 085: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 086: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 087: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 088: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 089: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 090: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 001 Device 091: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0451:2046 Texas Instruments, Inc. TUSB2046 Hub
Bus 002 Device 003: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 004: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 005: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 006: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 007: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 008: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 009: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 010: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 011: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 012: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 013: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 014: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 015: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 016: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 017: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 018: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 019: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 020: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 021: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 022: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 002 Device 023: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 024: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 025: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 026: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 027: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 028: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 029: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 030: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 031: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 032: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 033: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 034: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 035: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 036: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 037: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 038: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 039: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 040: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 041: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 042: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 043: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 044: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 045: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 046: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 047: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 048: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 049: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 050: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 051: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 052: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 053: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 054: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 055: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 056: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 057: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 058: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 059: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 060: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 061: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 062: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 063: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 064: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 065: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 066: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 067: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 068: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 069: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 070: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 071: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 072: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 073: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 074: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 075: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 076: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 077: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 078: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 079: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 080: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 081: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 082: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 083: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 084: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 085: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 002 Device 086: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 413c:1003 Dell Computer Corp. Keyboard Hub
Bus 003 Device 003: ID 0451:2046 Texas Instruments, Inc. TUSB2046 Hub
Bus 003 Device 004: ID 413c:2010 Dell Computer Corp. Keyboard
Bus 003 Device 005: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 006: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 007: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 008: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 009: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 010: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 011: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 012: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 013: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 014: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 015: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 016: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 017: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 018: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 019: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 020: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 021: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 022: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 023: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 024: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 003 Device 025: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 026: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 027: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 028: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 029: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 030: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 031: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 032: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 033: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 034: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 035: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 036: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 037: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 038: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 039: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 040: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 041: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 042: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 043: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 044: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 045: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 046: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 047: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 048: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 049: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 050: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 051: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 052: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 053: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 054: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 055: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 056: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 057: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 058: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 059: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 060: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 061: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 062: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 063: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 064: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 065: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 066: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 067: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 068: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 069: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 070: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 071: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 072: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 073: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 074: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 075: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 076: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 077: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 078: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 079: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 080: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 081: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 082: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 083: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 084: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 085: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 086: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 087: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 003 Device 088: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 0451:2046 Texas Instruments, Inc. TUSB2046 Hub
Bus 004 Device 003: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 004: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 005: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 006: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 007: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 008: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 009: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 010: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 011: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 012: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 013: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 014: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 015: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 016: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 017: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 018: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 019: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 020: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 021: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 022: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub
Bus 004 Device 023: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 024: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 025: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 026: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 027: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 028: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 029: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 030: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 031: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 032: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 033: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 034: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 035: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 036: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 037: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 038: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 039: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 040: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 041: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 042: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 043: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 044: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 045: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 046: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 047: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 048: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 049: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 050: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 051: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 052: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 053: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 054: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 055: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 056: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 057: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 058: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 059: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 060: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 061: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 062: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 063: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 064: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 065: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 066: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 067: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 068: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 069: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 070: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 071: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 072: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 073: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 074: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 075: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 076: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 077: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 078: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 079: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 080: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 081: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 082: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 083: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 084: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 085: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 004 Device 086: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Attachment: kern.log.bz2
Description: Binary data