I have an Olimex ARM-USB-OCD which I haven't used in a while. I just
got it out and tried using it on 2.6.28. I can't get the serial port
and JTAG to work simultaneously. It appears to me that ftdi-sio is
interfering with the user space jtag program. I get this in the log
file when I use the user space program.
usb 7-2: usbfs: interface 1 claimed by ftdi_sio while 'jtag' sets config #1
If I unload ftdi-sio I can use the device.
7-2:1.0 says its driver is usbfs
7-2:1.1 says its driver is ftdi_sio
I tried echo -n 7-2:1.0 >unbind on usbfs but it didn't help.
Bus 007 Device 003: ID 15ba:0003 Olimex Ltd. OpenOCD JTAG
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x15ba Olimex Ltd.
idProduct 0x0003 OpenOCD JTAG
bcdDevice 5.00
iManufacturer 1 Olimex
iProduct 2 Olimex OpenOCD JTAG
iSerial 3 FTPVS5PF
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 55
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 300mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 2 Olimex OpenOCD JTAG
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 2 Olimex OpenOCD JTAG
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Device Status: 0x0000
(Bus Powered)
usbcore: registered new interface driver usbserial
usbserial: USB Serial Driver core
USB Serial support registered for FTDI USB Serial Device
usb 7-2: Ignoring serial port reserved for JTAG
ftdi_sio 7-2:1.1: FTDI USB Serial Device converter detected
usb 7-2: Detected FT2232C
usb 7-2: FTDI USB Serial Device converter now attached to ttyUSB0
usbcore: registered new interface driver ftdi_sio
ftdi_sio: v1.4.3:USB FTDI Serial Converters Driver
--
Jon Smirl
jonsmirl@xxxxxxxxx
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