Re: Help on gadget udc
Alan Stern <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
On Thu, 12 Jul 2007, Rajesh Srinivasan wrote: > Hi All, > > I am in teh process of developing a gadget driver for our peripheral > hardware. I have completed the non-gadget version (custom driver) for our > peripheral controller, and am about to start with the Gadget driver. Do we > have any guide as to the steps for creating a new udc driver?. I have a > torrent of small noobie questions like this.. > Once i insmod (or modprobe) my udc driver, the kernel never calls the > probe() function. (Whereas for the dummy-hcd, probe() is called as soon as > insmoded). As my structure and hardware initializations are done in the > probe().. When i do an insmod of teh file_storage, it straightaway calls > the usb_gadget_register_driver(), and as the software is not initialized > yet, it crashes. What is the exact order / time when the probe is called > by the kernel? Any bits of info or tips will be quite helpful. You have to register the controller as a platform device and the controller driver as a platform driver. There was an email thread about this within the past week on the usb-storage mailing list: https://lists.one-eyed-alien.net/pipermail/usb-storage/2007-July/date.html Read the messages with "g_file_storage" in the subject line. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel