2010/5/26 Peter Zijlstra <peterz@xxxxxxxxxxxxx>: > 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. > That would be very inefficient. -- Arve Hjønnevåg -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html