Hi Murali Thanks for the response. Sorry, I should have sent dmesg output earlier. Yes, the module is loaded in lsmod. Here is the additional output from dmesg after I inserted the module. - Adhyas On Wed, Feb 23, 2011 at 11:50 AM, Murali N <nalajala.murali@xxxxxxxxx> wrote: > Hi, > > On Wed, Feb 23, 2011 at 12:10 PM, Adhyas Avasthi <adhyas@xxxxxxxxx> wrote: >> I am trying to develop a very basic PCI device driver for a dummy >> device I have created in qemu. The device has no functionality except >> that it sits on the PCI bus behind two bridges (bridge 0 on root bus, >> bridge 1 only device behind bridge 0, and device behind bridge 1 as >> the only device). It is a single function do nothing device with one >> MMIO BAR of 0x10000 size. The BAR is initialized by the kernel at some >> MMIO location but the device is not disabled, as there is no driver. I >> have used one of the available vendor ids for my work. >> >> My driver is not loaded automatically, so I load the driver manually >> after the boot of the VM, and then issues a rescan of the entire PCI >> bus using "echo 1 > /sys/bus/pci/rescan", but nothing happens. The >> probe function of my driver is never invoked, neither does the device >> gets visible in lspci output. >> >> Can someone help me identify what I might be doing wrong? >> >> I have attached the driver code, the lspci output, the lspci -H1 >> output, the lspci -H1 -xxx -s 02:02.0 output that details the >> registers of the device. >> >> -- >> Adhyas >> ******************************************************************** >> Two types have compatible type if their types are the same. >> — ANSI C Standard, 3.1.2.6. >> ******************************************************************** >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies@xxxxxxxxxxxxxxxxx >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> > > Once you loaded manually, did you see any errors in dmesg while > inserting the module? > what is the output of 'lsmod'? is your driver present in the list? > > Can you please post the dmesg after you loaded the module manually. > > -- > Regards, > Murali N > -- Adhyas ******************************************************************** Two types have compatible type if their types are the same. — ANSI C Standard, 3.1.2.6. ********************************************************************
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