> On Thu, 11 Jan 2007, Jon Smirl wrote: > [...] > > Here we see a resume that failed. The key indicator is the 0x1000 bit in > the portsc value; it means the port is still suspended even after it was > supposed to have resumed. This is the Intel hardware-resume bug I > described earlier. I have seen it on a few occasions but I cannot > duplicate it reproducibly. If you can, your system would make a good test > case. Try applying the diagnostic patch below and see what happens. > > When this sort of error occurs, the USB core resets the device and > re-enumerates it. > > > hub 3-0:1.0: port 2 status 0004.0107 after resume, 0 > > hub 3-0:1.0: logical disconnect on port 2 > > usb 3-2: can't resume, status -19 > > This shows the core realizing that the resume failed. >
I've been experiencing a similar resume failure on my fingerprint reader (on a Thinkpad T60) and I can reproduce it easily. I applied your diagnostic patch on a 2.6.20 tree and this is what I got on syslog. Please let me know if this is of any help and if there's anything else I could do to help further debugging. Feb 12 22:51:30 frida kernel: [ 3529.760000] usb usb5: usb auto-resume Feb 12 22:51:30 frida kernel: [ 3529.760000] usb usb5: finish resume Feb 12 22:51:30 frida kernel: [ 3529.760000] hub 5-0:1.0: hub_resume Feb 12 22:51:30 frida kernel: [ 3529.760000] usb usb5: wakeup_rh Feb 12 22:51:30 frida kernel: [ 3529.800000] hub 5-0:1.0: state 7 ports 2 chg 0000 evt 0000 Feb 12 22:51:30 frida kernel: [ 3529.800000] usb 5-2: usb auto-resume Feb 12 22:51:30 frida kernel: [ 3529.832000] uhci_hcd 0000:00:1d.3: port 2 resume iterations 0:0 Feb 12 22:51:30 frida kernel: [ 3529.832000] uhci_hcd 0000:00:1d.3: port 2 portsc 1095,01 Feb 12 22:51:30 frida kernel: [ 3529.832000] hub 5-0:1.0: port 2 status 0004.0107 after resume, 0 Feb 12 22:51:30 frida kernel: [ 3529.832000] hub 5-0:1.0: logical disconnect on port 2 Feb 12 22:51:30 frida kernel: [ 3529.832000] usb 5-2: can't resume, status -19 Feb 12 22:51:30 frida kernel: [ 3529.832000] hub 5-0:1.0: state 7 ports 2 chg 0004 evt 0000 Feb 12 22:51:30 frida kernel: [ 3529.832000] uhci_hcd 0000:00:1d.3: port 2 portsc 0091,01 Cheers, Guilherme ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
