Re: USB Driver devellopement for custom USB devices

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jan 19, 2010 at 04:10:21PM +0100, IATRIDES Cl?ment wrote:
> Hello,
>
> I am currently working on the devellopement of an USB driver for my custom 
> USB device. I based my work on the usb-skelleton driver of the kernet and 
> just replaced the vendor and device id.
>
> When I do not load my driver I get this message from the kernel :
>
> usb 2-2.4: new full speed USB device using ehci-omap and address 3
> usb 2-2.4: unable to read config index 0 descriptor/start: -110
> usb 2-2.4: chopping to 0 config(s)
> usb 2-2.4: New USB device found, idVendor=4747, idProduct=4d57
> usb 2-2.4: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> usb 2-2.4: no configuration chosen from 0 choices
>
> In a way it is logical my device isn't recognised by my kernel. But I have 
> an error message at line 2. When I connect my device after loading my 
> driver I get the same masseges.
>
> What did I do wrong ?

Does your device pass the USB-IF test suite already?  If you have not
tried it, I would suggest going to www.usb.org and downloading them and
running them first (sorry, they only work on Windows).  That will
exercise your device to verify that it is working properly, which the
above log files indicate that it is not.

thanks,

greg k-h
--
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

[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux