On Tue, 31 Jan 2012, Ross Ryles wrote: > Here is the appropriate registers file: > > bus pci, device 0000:00:04.0 > OHCI Host Controller > ohci_hcd > OHCI 1.0, NO legacy support registers > control 0x683 RWE RWC HCFS=operational CBSR=3 > cmdstatus 0x00000 SOC=0 > intrstatus 0x00000020 FNO > intrenable 0x8000005e MIE RHSC UE RD SF WDH > ed_controlhead b4a3a000 > ed_bulkhead b4a3a050 > hcca frame 0x4da3 > fmintvl 0xa7782edf FIT FSMPS=0xa778 FI=0x2edf > fmremaining 0x80000f6c FRT FR=0x0f6c > periodicstart 0x2a2f > lsthresh 0x0700 > hub poll timer off > roothub.a 01001206 POTPGT=1 NOCP NPS NDP=6(6) > roothub.b 00000000 PPCM=0000 DR=0000 > roothub.status 00008000 DRWE > roothub.portstatus [0] 0x00000100 PPS > roothub.portstatus [1] 0x00000100 PPS > roothub.portstatus [2] 0x00000103 PPS PES CCS > roothub.portstatus [3] 0x00000100 PPS > roothub.portstatus [4] 0x00000100 PPS > roothub.portstatus [5] 0x00000100 PPS > > The other two files are no different. This looks quite normal, with no sign of any problems. In particular, the URB which was supposed to have been killed is not present. The next step is collect a usbmon trace for bus 4, starting shortly before you close the serial port. Instructions are in Documentation/usb/usbmon.txt. Alan Stern -- 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
