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CALL_USERMODEHELPER_(9) | Module Support | CALL_USERMODEHELPER_(9) |
NAME¶
call_usermodehelper_exec - start a usermode applicationSYNOPSIS¶
int
call_usermodehelper_exec(struct subprocess_info * sub_info,
int wait);
ARGUMENTS¶
sub_infoinformation 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 system workqueues. (ie. it runs with full root capabilities and optimized affinity).COPYRIGHT¶
January 2017 | Kernel Hackers Manual 4.8. |