diff options
-rw-r--r-- | usr.sbin/apm/apm.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/usr.sbin/apm/apm.c b/usr.sbin/apm/apm.c index 89d3a50..e64dc7b 100644 --- a/usr.sbin/apm/apm.c +++ b/usr.sbin/apm/apm.c @@ -412,7 +412,10 @@ main(int argc, char *argv[]) argv += optind; } finish_option: - fd = open(APMDEV, O_RDWR); + if (haltcpu != -1 || enable != -1 || delta || sleep || standby) + fd = open(APMDEV, O_RDWR); + else + fd = open(APMDEV, O_RDONLY); if (fd == -1) err(1, "can't open %s", APMDEV); if (enable != -1) |