On Sat, Jun 12, 2004 at 08:33:47PM +0200, Margit Schubert-While wrote: > Curiousity regarding data pointer for usb_bulk_msg. > Over at the prism54 project http://prism54.org , work has > just started on adapting the driver for the USB devices. > All of these Prism GT chipsets require a firmware to be loaded. > This , of course, is done by the kernel firmware loader routine > request_firmware. > Now the curiousity; if we use a pointer to the data area as returned > from request_firmware, it doesn't work. If, however, we use the stack > (or a kmalloc'ed area) and copy over and pass the stack (or km'ed area) > address, then it works. > Only thing I could find is that request_firmware allocates the data area > using vmalloc. Why is this a problem ?
Hm, that's odd. Do you have a pointer to the code, or perhaps just a small snippet that you can post here showing the problem? thanks, greg k-h ------------------------------------------------------- This SF.Net email is sponsored by the new InstallShield X. >From Windows to Linux, servers to mobile, InstallShield X is the one installation-authoring solution that does it all. Learn more and evaluate today! http://www.installshield.com/Dev2Dev/0504 _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
