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 -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
