A call to ioctl(..., RTC_IRQP_SET, ...) should never result in ENOTTY. All new style RTC drivers implement it and all of the old style drivers return EINVAL when they don't support periodic IRQs.
Signed-off-by: Andrey Smirnov <[email protected]> --- tools/testing/selftests/timers/rtctest.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/rtctest.c b/tools/testing/selftests/timers/rtctest.c index 97beadf..4230d30 100644 --- a/tools/testing/selftests/timers/rtctest.c +++ b/tools/testing/selftests/timers/rtctest.c @@ -218,7 +218,7 @@ test_PIE: retval = ioctl(fd, RTC_IRQP_SET, tmp); if (retval == -1) { /* not all RTCs can change their periodic IRQ rate */ - if (errno == ENOTTY) { + if (errno == EINVAL) { fprintf(stderr, "\n...Periodic IRQ rate is fixed\n"); goto done; -- 2.5.5
