> The USB core needs memory that is created with kmalloc. Why would you > be wanting to send a larger buffer in one shot through the USB core than > what you can create with kmalloc? > > How large of a buffer do you want to try to send at one time? And why > can't you split it up into tiny buffers, like the USB device wants? > > What kind of USB device is this driver for? The problem isn't trying to send that much memory. The device is a camera, and I was trying to allocate and array of frames but only pass one at a time down. I guess I'll rethink that design. :) If you (or anyone else has time) can you explain the purpose of the rvmalloc/rvfree and uvirt_to_kva/kvirt_to_pa functions in the bttv and cpia drivers do? And is there a generic replacement for these as the comments in those drivers suggest? (I'm writing a driver for 2.4 driver at the moment.) Thanks for the help. John -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
