On Mon, 09 Jul 2007 15:00:17 +0100 Graham Murray <[EMAIL PROTECTED]> wrote:
> There were multiple changes to the char/sx.c driver in kernel 2.6.20. Let's cc Jiri. > In > kernels 2.6.19 and earlier, the SX multiport serial card works OK, but > in 2.6.20 and later the driver does not seemt to detect the presence of > the card. > > I have enabled sx_debug=-1 and added some printk statements to try and > detect why the card is not detected. These show that sx_init is entered > and within that function the call to pci_register_driver returns 0. I do > not see any other routines in the driver being entered either at startup > (when the module is loaded, which indicates that the system recognises > the PCI ID) or when running 'modprobe sx'. In particular, sx_pci_probe() > is never entered. > > lspci -vv for the card > > 10:01.0 Communication controller: Specialix Research Ltd. PCI_9050 > Subsystem: Specialix Research Ltd. Unknown device 0300 > Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR+ FastB2B- > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- > <TAbort- <MAbort- >SERR- <PERR- > Interrupt: pin A routed to IRQ 11 > Region 0: Memory at df2ffc00 (32-bit, non-prefetchable) [size=128] > Region 1: I/O ports at 9c80 [size=128] > Region 2: Memory at df200000 (32-bit, non-prefetchable) [size=512K] > Region 3: Memory at df280000 (32-bit, non-prefetchable) [size=256K] > > I have enabled CONFIG_PCI_DEBUG and see the following:- > > PCI: Probing PCI hardware (bus 00) > ... > PCI: Scanning bus 0000:10 > PCI: Found 0000:10:01.0 [11cb/2000] 000780 00 > PCI: Calling quirk c0362041 for 0000:10:01.0 > ... > PCI: Calling quirk c027a199 for 0000:10:01.0 > PCI: Calling quirk c033cb9e for 0000:10:01.0 > > > Where should I look for and how should I obtain further debug to > determine where the problem lies? > A git-bisect should find this fairly quickly. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
