On Sat, 19 Mar 2005, Henrik Bjerne wrote: > Okay I now compiled the kernel with usb verbose debugging. > This is what turned up in the '/var/log/debug' file after I connected the > device with ehci active: > > > > Mar 19 15:29:17 bjerne kernel: hub 4-0:1.0: state 5 ports 6 chg ffc0 evt > 0004 > Mar 19 15:29:17 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001803 POWER sig=j CSC CONNECT > Mar 19 15:29:17 bjerne kernel: hub 4-0:1.0: port 2, status 0501, change > 0001, 480 Mb/s > Mar 19 15:29:17 bjerne kernel: hub 4-0:1.0: debounce: port 2: total 100ms > stable 100ms status 0x501 > Mar 19 15:29:17 bjerne kernel: ehci_hcd 0000:00:10.3: port 2 high speed > Mar 19 15:29:17 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001005 POWER sig=se0 PE CONNECT > Mar 19 15:29:18 bjerne kernel: ehci_hcd 0000:00:10.3: port 2 high speed > Mar 19 15:29:18 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001005 POWER sig=se0 PE CONNECT > Mar 19 15:29:23 bjerne kernel: ehci_hcd 0000:00:10.3: port 2 high speed > Mar 19 15:29:23 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001005 POWER sig=se0 PE CONNECT > Mar 19 15:29:23 bjerne kernel: ehci_hcd 0000:00:10.3: port 2 high speed > Mar 19 15:29:23 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001005 POWER sig=se0 PE CONNECT > Mar 19 15:29:28 bjerne kernel: hub 4-0:1.0: state 5 ports 6 chg ffc0 evt > 0004 > Mar 19 15:29:28 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001803 POWER sig=j CSC CONNECT > Mar 19 15:29:28 bjerne kernel: hub 4-0:1.0: port 2, status 0501, change > 0001, 480 Mb/s > Mar 19 15:29:28 bjerne kernel: hub 4-0:1.0: debounce: port 2: total 100ms > stable 100ms status 0x501 > Mar 19 15:29:28 bjerne kernel: ehci_hcd 0000:00:10.3: port 2 high speed > Mar 19 15:29:28 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001005 POWER sig=se0 PE CONNECT > Mar 19 15:29:28 bjerne kernel: ehci_hcd 0000:00:10.3: port 2 high speed > Mar 19 15:29:28 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001005 POWER sig=se0 PE CONNECT > Mar 19 15:29:33 bjerne kernel: ehci_hcd 0000:00:10.3: port 2 high speed > Mar 19 15:29:33 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001005 POWER sig=se0 PE CONNECT > Mar 19 15:29:33 bjerne kernel: ehci_hcd 0000:00:10.3: port 2 high speed > Mar 19 15:29:33 bjerne kernel: ehci_hcd 0000:00:10.3: GetStatus port 2 > status 001005 POWER sig=se0 PE CONNECT > Mar 19 15:29:33 bjerne kernel: usb 4-2: new device strings: Mfr=1, > Product=2, SerialNumber=3 > Mar 19 15:29:33 bjerne kernel: usb 4-2: default language 0x0409 > Mar 19 15:29:38 bjerne kernel: usb 4-2: hcd_unlink_urb cecdd5e0 fail -16 > > > Hope this will help.
This appears to be a hardware problem of some sort. Maybe the EHCI controller on your computer isn't working right, or maybe the USB cable connections allow too much noise to leak in when operating at high speed. You could try using 2.6.11; it includes a few driver fixes that aren't in 2.6.10 and they may help. Alan Stern ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
