PIO Kernel module

[Altera_Forum]

Hello, 

I'm currently using a Kernel module for LED PIO as a character device. I control it with fopen, fprintf, fread in my application. But I would like to write integer and use 32 bit registers. I know i could use fwrite but i'm not sure the module can handle it. What can i do in order to send integers instead of bytes to the kernel module? ;)

[Altera_Forum]

Unix file io is all character/byte based, the stdio functions are best used for text! 

 You probably ought to use open/read/write/close rather than the stdio forms, at least they'll generate one system call per function call...  For device control look at ioctl().