call_usermodehelper — prepare and start a usermode application


int call_usermodehelper (const char * path,
 char ** argv,
 char ** envp,
 int wait);


const char * path

path to usermode executable

char ** argv

arg vector for process

char ** envp

environment for process

int wait

wait for the application to finish and return status. when UMH_NO_WAIT don't wait at all, but you get no useful error back when the program couldn't be exec'ed. This makes it safe to call from interrupt context.


This function is the equivalent to use call_usermodehelper_setup and call_usermodehelper_exec.