Thanks Greg. I had a good look at the driver removal part of the code
and found out that the driver was not properly being removed. Added
additional to check to look through the enumeration and remove and each
and every channel and now I get no errors. I wrote a script to uninstall
and reinstall the drivers n number of times and it works fine now.
We are working on removing class_device albeit slowly or rather very
slowly.
Thanks,
Dinesh
Greg KH wrote:
On Thu, Jun 14, 2007 at 11:28:14AM -0500, Dinesh wrote:
Hello,
I am developing a driver for one of our PCIe based boards. When I install
the first time, all the four input channels on the card are correctly
enumerated in dmesg. When I uninstall the driver, I get no error messages.
However, when I load the driver the second time, I get the following errors
in dmesg:
sdim_qie: SDI Q/i detected, firmware version 0.1 (0x0001)
sdim_qie: unable to register class_device
Ick, that's not good. Can you enable debugging for the driver core
(it's a config option) and send the full output that happens here?
Also, please realize that struct class_device is going away, please use
just a "struct device" instead.
And, do you have a pointer to your code anywhere? It's looking like you
are just registering a device the second time without removing the first
one, or using the same name the second time.
sdim_qie: probe of 0000:02:04.0 failed with error -17
It goes through the correct loop, detects the card and reads the firmware
version correctly and fails to enumerate the channels.
Can anybody tell me what this error code -17 points to?
It's a error number in the kernel, look in errno.h for what it means.
thanks,
greg k-h
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