On Wed, 8 Jul 2009, Michael S. Zick wrote: > > > > > For more information enable CONFIG_USB_DEBUG and CONFIG_DEBUG_FS, then > > > > > see what's sitting in the usb/uhci/* files in debugfs. > > > > > > > > > > > Anything in particular to look for/at? > > > > Just post the contents of those files. > > > Done: > > root@cb01:/sys/kernel/debug/uhci# cat * > Root-hub state: suspended FSBR: 0 > HC status > usbcmd = 0048 Maxp32 CF EGSM > usbstat = 0020 HCHalted > usbint = 0002 > usbfrnum = (1)4a8 > flbaseadd = 19c7f000 > sof = 40 > stat1 = 0480 OverCurrent > stat2 = 0480 OverCurrent > Most recent frame: 52a (298) Last ISO frame: 52a (298) > Periodic load table > 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 > Total: 0, #INT: 0, #ISO: 0 > Root-hub state: suspended FSBR: 0 > HC status > usbcmd = 0048 Maxp32 CF EGSM > usbstat = 0020 HCHalted > usbint = 0002 > usbfrnum = (1)4a0 > flbaseadd = 19c63000 > sof = 40 > stat1 = 0480 OverCurrent > stat2 = 0480 OverCurrent > Most recent frame: 528 (296) Last ISO frame: 528 (296) > Periodic load table > 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 > Total: 0, #INT: 0, #ISO: 0 > Root-hub state: running FSBR: 0 > HC status > usbcmd = 00c1 Maxp64 CF RS > usbstat = 0000 > usbint = 000f > usbfrnum = (0)c1c > flbaseadd = 19c9c000 > sof = 40 > stat1 = 0495 OverCurrent Enabled Connected > stat2 = 0495 OverCurrent Enabled Connected > Most recent frame: 56aee (750) Last ISO frame: 56aee (750) > Periodic load table > 0 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 > 17 0 0 0 0 0 0 0 > 0 0 0 0 0 0 0 0 > Total: 17, #INT: 1, #ISO: 0 > > And, at no extra cost: > > root@cb01:/sys/kernel/debug/ehci/0000:00:10.4# cat * > size = 256 > bus pci, device 0000:00:10.4 > EHCI Host Controller > EHCI 1.00, hcd state 4 > ownership 01000001 linux > SMI sts/enable 0xe00f0000 > structural params 0x00103206 > capability params 0x00006872 > status 100f Halt FLR PCD ERR INT > command 010008 (park)=0 ithresh=1 period=256 HALT > intrenable 37 IAA FATAL PCD ERR INT > uframe 14db > port 1 status 701000 POWER sig=se0 > port 2 status 701000 POWER sig=se0 > port 3 status 701000 POWER sig=se0 > port 4 status 701000 POWER sig=se0 > port 5 status 703802 POWER OWNER sig=j CSC > port 6 status 703802 POWER OWNER sig=j CSC > irq normal 0 err 0 reclaim 0 (lost 20) > complete 0 unlink 20 Those files all look perfectly normal. You made these copies at a time when everything was working, right? It will be more interesting to see them at a time when something isn't working. 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
