I'm trying to do ioctl command through Mono framework, but I cant find what I'm looking for.
I'm trying to send command to a DVB card that has a kernel module. I hope someone can link or explain clearly how this can be done. Any example with Mono using kernel modules would be useful I guess.
Mono does not contain a wrapper for ioctl in Mono.Unix, because ioctl call parameters vary greatly and such a wrapper would be almost useless. You should declare a DllImport for each ioctl you need.
You probably don't need a helper library written in C, however, you may need it during development to extract actual values hidden behind different C preprocessor macros. For example, to expand C header:
#define FE_GET_INFO _IOR('o', 61, struct dvb_frontend_info)
compile and execute this helper:
#include <linux/dvb/frontend.h>
#include <stdio.h>
int main()
{
printf("const int FE_GET_INFO = %d;\n", FE_GET_INFO);
return 0;
}
ioctl isn't supported by Mono AFAIK. Too OS-specific and parameter list depends on actual request. You could try DLLImport
You should write a wrapper library for your exact calls. Look at how Mono.Unix wraps syscalls (google codesearch for Mono.Unix Syscall.cs) to get the idea. Then create a wrapper for each specific ioctl command, which uses your own representation of the data.
As jitter said - you'll need to DLLImport the ioctl itself.
Check for my similar question, and later question on the subject. In this case I'm trying to wrap the Videl4Linux interface, that could be of interest for you.
I really suggest those readings.
