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Altera_Forum's avatar
Altera_Forum
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13 years ago

PIO Kernel module

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....
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

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().