On 12/07/11 14:55, Mauro Carvalho Chehab wrote:
<snip>
Bus 2 doesn't seem to do anything [Alloc= 0/800 us ( 0%)] while I'm
scanning!?
Scanning envolves 2 different things:
1) tuning and locking into a channel;
2) streaming and filtering, in order to seek for program tables
inside the MPEG-TS.
Step 1 uses USB control messages.
Only at step 2, the device will use the USB ISOC packets. The USB core
will
see if is there enough bandwidth to reserve for ISOC transfers on that
time
(based on other traffic data), and submit the URB's (or return -ENOSPC
otherwise).
BTW: I'm running Gentoo x86_64 (amd64) on a Dell M2400 laptop with an
SSD disk.
Other hardware connected is a 200 GB disk using the eSata slot, a 1TB
WD disk connected using another USB slot, a RME Multiface II
soundcard using the expresscard slot.
The external USB disk may be interfering, if it is also at bus 2.
Also, some laptops use USB for some internal components like wireless.
Please remove all other USB devices, disable wireless (if your device
is USB)
and try again.
Regards,
Mauro
No there's nothing else at Bus 2 (I did a umount on the WD usb disk,
cannot unplug devices since I'm logged in remotely right now), and
Wireless is a pci device:
lin-tv ~ # lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory
Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI
Express Graphics Port (rev 07)
00:19.0 Ethernet controller: Intel Corporation 82567LM Gigabit Network
Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI
Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express
Port 4 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI
Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller
(rev 03)
00:1f.2 RAID bus controller: Intel Corporation Mobile 82801 SATA RAID
Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller
(rev 03)
01:00.0 VGA compatible controller: nVidia Corporation Device 06fb (rev a1)
03:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller
(rev 04)
03:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro
Host Adapter (rev 21)
03:01.2 SD Host controller: Ricoh Co Ltd R5C843 MMC Host Controller (rev 11)
0c:00.0 Network controller: Intel Corporation PRO/Wireless 5300 AGN
[Shiloh] Network Connection
0e:00.0 Multimedia audio controller: Xilinx Corporation RME Hammerfall
DSP (rev 3c)
lin-tv ~ # lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 413c:2513 Dell Computer Corp. internal USB Hub of
E-Port Replicator
Bus 001 Device 005: ID 0c45:63f8 Microdia Sonix Integrated Webcam
Bus 003 Device 002: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub
(part of BCM2046 Bluetooth)
Bus 005 Device 002: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure
Applications Processor
Bus 006 Device 002: ID 0451:2036 Texas Instruments, Inc. TUSB2036 Hub
Bus 003 Device 003: ID 413c:8157 Dell Computer Corp. Integrated Keyboard
Bus 003 Device 004: ID 413c:8158 Dell Computer Corp. Integrated Touchpad
/ Trackstick
Bus 006 Device 004: ID 046d:c704 Logitech, Inc. diNovo Wireless Desktop
Bus 003 Device 005: ID 413c:8156 Dell Computer Corp. Wireless 370
Bluetooth Mini-card
Bus 002 Device 008: ID 2040:1605 Hauppauge
Devices at Bus 2:
lin-tv ~ # lsusb | grep "Bus 002"
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 008: ID 2040:1605 Hauppauge
/Fredrik
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