Name

call_usermodehelper_exec — start a usermode application

Synopsis

int call_usermodehelper_exec (struct subprocess_info * sub_info,
 int wait);
 

Arguments

sub_info

information about the subprocessa

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.

Description

Runs a user-space application. The application is started asynchronously if wait is not set, and runs as a child of keventd. (ie. it runs with full root capabilities).