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Sat May 19 12:11:40 EDT 2012

kernel with USB debug message



May 19 11:53:16 broebel kernel: [  925.937217] usb usb1: usb resume
May 19 11:53:16 broebel kernel: [  925.937246] usb usb1: wakeup_rh
May 19 11:53:17 broebel kernel: [  925.976143] hub 1-0:1.0: hub_resume
May 19 11:53:17 broebel kernel: [  925.976205] uhci_hcd 0000:00:07.2: port 1 portsc 0093,00
May 19 11:53:17 broebel kernel: [  925.976240] hub 1-0:1.0: port 1: status 0101 change 0001
May 19 11:53:17 broebel kernel: [  926.080205] hub 1-0:1.0: state 7 ports 2 chg 0002 evt 0000
May 19 11:53:17 broebel kernel: [  926.080269] hub 1-0:1.0: port 1, status 0101, change 0000, 12 Mb/s
May 19 11:53:17 broebel kernel: [  926.192164] usb 1-1: new full speed USB device using uhci_hcd and address 6
May 19 11:53:17 broebel kernel: [  926.221152] usb 1-1: uhci_result_common: failed with status 440000

440000 == (1<<22) | (1<<18)
       == TD_CTRL_STALLED | D_CTRL_CRCTIMEO


Conclusion?  I don't think the device sends anything.
Next step:
- read the datasheet
- read example code


broebel:/net/kers/home/tom/linux/linux-2.6-2.6.32/drivers/usb/core# rmmod ehci_hcd uhci_hcd usbmon usbcore ; insmod ./usbcore.ko  ; modprobe usbmon ; modprobe uhci_hcd




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