Hi, Thanks for your replies.
On Sun, Mar 6, 2011 at 10:19 PM, Laurent Pinchart <laurent.pinch...@ideasonboard.com> wrote: > Hi, > > On Tuesday 22 February 2011 01:53:59 linux newbie wrote: >> [ 515.220000] hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0004 >> [ 515.220000] str8100-ehci str8100-ehci: GetStatus port 2 status >> 001009 POWER sig=se0 PEC CONNECT >> [ 515.220000] hub 1-0:1.0: port 2 enable change, status 00000501 >> [ 515.220000] hub 1-0:1.0: port 2 disabled by hub (EMI?), re-enabling... >> [ 515.220000] hub 1-0:1.0: port 2, status 0501, change 0002, 480 Mb/s >> [ 515.220000] usb 1-2: USB disconnect, address 2 >> [ 515.220000] usb 1-2: unregistering device >> [ 515.220000] usb 1-2: usb_disable_device nuking all URBs >> [ 515.220000] str8100-ehci str8100-ehci: shutdown urb c3fbe000 ep1in-iso >> [ 515.220000] str8100-ehci str8100-ehci: shutdown urb c3c4d000 ep1in-iso >> [ 515.220000] str8100-ehci str8100-ehci: shutdown urb c3fbf800 ep1in-iso >> [ 515.220000] str8100-ehci str8100-ehci: shutdown urb c3fbf000 ep1in-iso >> [ 515.220000] str8100-ehci str8100-ehci: shutdown urb c3fbe800 ep1in-iso >> [ 515.260000] usb 1-2: unlink qh16-0001/ffc02100 start 15 [1/0 us] >> [ 515.260000] str8100-ehci str8100-ehci: shutdown urb c3c5b540 ep3in-intr >> [ 515.260000] usb 1-2: unregistering interface 1-2:1.0 >> [ 515.270000] usb 1-2:1.0: uevent >> [ 515.270000] usb 1-2: unregistering interface 1-2:1.1 >> [ 515.270000] usb 1-2:1.1: uevent >> [ 515.280000] usb 1-2: unregistering interface 1-2:1.2 >> [ 515.280000] usb 1-2:1.2: uevent >> [ 515.280000] usb 1-2: unregistering interface 1-2:1.3 >> [ 515.280000] usb 1-2:1.3: uevent >> [ 515.280000] usb 1-2: uevent >> [ 515.340000] str8100-ehci str8100-ehci: GetStatus port 2 status >> 001002 POWER sig=se0 CSC >> [ 515.340000] hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0004 > > That's a low-level USB issue. Bad cables, buggy webcam, noisy environment, ... > The uvcvideo driver isn't at fault. If the camera decides to disconnect, > there's little the driver can do. > > -- > Regards, > > Laurent Pinchart > _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
