Messages in this thread |  | | | Subject | Re: [PATCH 2/8] PM: suspend_block: Add driver to access suspend blockers from user-space | | From | Peter Zijlstra <> | | Date | Wed, 26 May 2010 10:43:48 +0200 |
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On Fri, 2010-05-21 at 15:46 -0700, Arve Hjønnevåg wrote: > +To create a suspend blocker from user space, open the suspend_blocker > special > +device file: > + > + fd = open("/dev/suspend_blocker", O_RDWR | O_CLOEXEC); > + > +then optionally call: > + > + ioctl(fd, SUSPEND_BLOCKER_IOCTL_SET_NAME(strlen(name)), name); > + > +To activate the suspend blocker call: > + > + ioctl(fd, SUSPEND_BLOCKER_IOCTL_BLOCK); > + > +To deactivate it call: > + > + ioctl(fd, SUSPEND_BLOCKER_IOCTL_UNBLOCK); > + > +To destroy the suspend blocker, close the device: > + > + close(fd);
Urgh, please let the open() be BLOCK, the close() be UNBLOCK, and keep the SET_NAME thing if you really care.
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