linux kernel module char device

Question

Hi Kernel Gurus,

i'm writing a char device in linux - xubuntu , and i'm wondering if i have to implement ioctl OR maybe i can use the regular read write funcs??

thanks all, Amit

Answer 1

The primary interface for a character device is the file functions, with ioctl serving extra, optional functionality.

Answer 2

If you're new to kernel module programming, you might want to check out the Linux Kernel Module Programming Guide.