On 12/14/2011 05:56 PM, KrishnaMohan Bandi wrote: > Thanks Andiry for the xhci controller patches. I have applied the > patches on top of the latest kernel source 3.2.0-rc4. I still could > not get my cameras going. The cameras could not initiate data transfer > at all. I am attaching both the dmesg and lspcii logs. > Thanks for your test. Are you using the patchset I sent on 12/12? If so, can you revert patch 8 "xHCI: wait for dequeue pointer move pass link TRB", just apply patch 1-7 and try again? Also, you can enable CONFIG_USB_HCD_XHCI_DEBUGGING, that will provide more usful information. Thanks, Andiry > > On 5 December 2011 02:12, Andiry Xu <andiry.xu@xxxxxxx> wrote: >> On 12/03/2011 01:51 AM, Sarah Sharp wrote: >>> On Fri, Dec 02, 2011 at 04:18:11PM +0000, KrishnaMohan Bandi wrote: >>>> I have attached the dmesg from when the camera is first plugged in and >>>> also the complete 'lspci -vvv' and 'lsusb -v' output in other >>>> attachments. >>>> >>>> Using IDS ueye camera .... >>>> >>>> [16809.701217] usb 9-3: USB disconnect, address 2 >>>> [16811.552121] usb 9-3: new high speed USB device using xhci_hcd and address 0 >>>> [16811.570947] usb 9-3: configuration #1 chosen from 1 choice >>>> [16840.646204] xhci_hcd 0000:08:00.0: WARN: Stalled endpoint >>>> [17145.555235] xhci_hcd 0000:08:00.0: ERROR no room on ep ring >>>> [17145.555250] usb 9-3: usbfs: usb_submit_urb returned -12 >>>> [17212.760318] xhci_hcd 0000:08:00.0: ERROR no room on ep ring >>>> [17212.760330] usb 9-3: usbfs: usb_submit_urb returned -12 >>>> >>>> Using PointGrey Firefly MV camera >>>> >>>> [17484.292165] usb 9-3: new high speed USB device using xhci_hcd and address 0 >>>> [17484.316807] xhci_hcd 0000:08:00.0: WARN: short transfer on control ep >>>> [17484.319798] xhci_hcd 0000:08:00.0: WARN: short transfer on control ep >>>> [17484.322779] xhci_hcd 0000:08:00.0: WARN: short transfer on control ep >>>> [17484.325779] xhci_hcd 0000:08:00.0: WARN: short transfer on control ep >>>> [17484.326435] usb 9-3: configuration #1 chosen from 1 choice >>>> [17503.849677] xhci_hcd 0000:08:00.0: ERROR no room on ep ring >>> >>> Ok, yeah, you need dynamic ring expansion for your cameras. 2.6.36 uses >>> 8 ring segments, and you're runnning 2.6.38, so I guess your cameras >>> need more than 8 segments. >>> >>> Andiry has been working on a patchset for ring expansion, but I have not >>> seen an update in a couple weeks. Andiry, how is the ring expansion >>> code progressing? >>> >> >> I have been quite busy in the past couple of weeks... I'll try to submit >> a v3 this week. >> >> Thanks, >> Andiry >> -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
