On Wed, 16 Apr 2014, Matteo Fortini wrote: > It's and AMD Geode single board computer, using CS5535 companion chip. > > Here's the pertaining lspci -vvv section: > > 00:0f.4 Class 0c03: Device 1022:2094 (rev 02) (prog-if 10) > Subsystem: Device 1022:2094 > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- DisINTx- > Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0, Cache Line Size: 32 bytes > Interrupt: pin D routed to IRQ 11 > Region 0: Memory at efffd000 (32-bit, non-prefetchable) [size=4K] > Capabilities: [40] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA > PME(D0+,D1-,D2-,D3hot+,D3cold+) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > Kernel driver in use: ohci-pci > > 00:0f.5 Class 0c03: Device 1022:2095 (rev 02) (prog-if 20) > Subsystem: Device 1022:2095 > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- DisINTx- > Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0, Cache Line Size: 32 bytes > Interrupt: pin D routed to IRQ 11 > Region 0: Memory at efffc000 (32-bit, non-prefetchable) [size=4K] > Capabilities: [40] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA > PME(D0+,D1-,D2-,D3hot+,D3cold+) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > Kernel driver in use: ehci-pci This doesn't answer my question. Which controller was the device attached to when the hang occurred? Was it the EHCI controller or the OHCI controller? If you enable CONFIG_USB_DEBUG, what shows up in the files under the corresponding directory in /sys/kernel/debug/usb/ehci/ or /sys/kernel/debug/usb/ohci/ when the hang occurs? 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
