1CALL_USERMODEHELPER_(9) Module Support CALL_USERMODEHELPER_(9)
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6 call_usermodehelper_exec - start a usermode application
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9 int call_usermodehelper_exec(struct subprocess_info * sub_info,
10 enum umh_wait wait);
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13 sub_info
14 information about the subprocessa
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16 wait
17 wait for the application to finish and return status. when -1 don't
18 wait at all, but you get no useful error back when the program
19 couldn't be exec'ed. This makes it safe to call from interrupt
20 context.
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23 Runs a user-space application. The application is started
24 asynchronously if wait is not set, and runs as a child of keventd. (ie.
25 it runs with full root capabilities).
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28Kernel Hackers Manual 2.6. November 2011 CALL_USERMODEHELPER_(9)