Well here's something I'm working on, It's not very large so I'll just attach it here as I don't really have a good place to host it. It uses the new char interface you can read about at http://lwn.net/Articles/49684/. I'm trying to get it to support sysfs (and udev), but am not having luck (any ideas anybody?). There are some commented out lines that try to make a class_simple for it, but I think it's not working because I don't have a device structure to use. ~Jake B On Thu, 16 Dec 2004 12:17:55 +0530, Deekshit Mantampady <dmantamp@xxxxxxxxx> wrote: > Hi all, > Can anybody point me to an example of a kernel module which creates a > char. device along with all steps, including a sample program to test > the module, I mean by opening a device and writing something to it. > > Somehow, a simpel device driver program that I wront didn't work. The > device was registered succesfully. I run mknod to create the device in > /dev/. I wrote a program to open the device. When run it in normal > user mode, it throws error permission denied. When I run it in > superuser mode, I get an error "Invalid device or address"(I don't > remeber the exact sentence). > > Please help me. > > Deekshit M > > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ > >
Attachment:
mymod.tar.bz2
Description: Binary data
