[v4l-utils] ir-ctl: report timeout when it cannot be modified

Commit Message

Sean Young Oct. 3, 2019, 10:45 a.m. UTC

There are many IR devices which cannot modify their timeout, but do
have a timeout which should be reported (e.g. mtk_cir).

Signed-off-by: Sean Young <[e-mail]>
---
 utils/ir-ctl/ir-ctl.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

Patch

diff --git a/utils/ir-ctl/ir-ctl.c b/utils/ir-ctl/ir-ctl.c
index 8aead6e0..ef399808 100644
--- a/utils/ir-ctl/ir-ctl.c
+++ b/utils/ir-ctl/ir-ctl.c
@@ -966,13 +966,16 @@  static void lirc_features(struct arguments *args, int fd, unsigned features)
 			printf(_(" - Use wideband receiver\n"));
 		if (features & LIRC_CAN_MEASURE_CARRIER)
 			printf(_(" - Can measure carrier\n"));
+
+		// This ioctl is only supported from kernel 4.18 onwards
+		unsigned timeout;
+		int rc = ioctl(fd, LIRC_GET_REC_TIMEOUT, &timeout);
+		if (rc == 0)
+			printf(_(" - Receiving timeout %u microseconds\n"), timeout);
+
 		if (features & LIRC_CAN_SET_REC_TIMEOUT) {
-			unsigned min_timeout, max_timeout, timeout;
+			unsigned min_timeout, max_timeout;
 
-			// This ioctl is only supported from kernel 4.18 onwards
-			int rc = ioctl(fd, LIRC_GET_REC_TIMEOUT, &timeout);
-			if (rc == 0)
-				printf(_(" - Receiving timeout %u microseconds\n"), timeout);
 			rc = ioctl(fd, LIRC_GET_MIN_TIMEOUT, &min_timeout);
 			if (rc) {
 				fprintf(stderr, _("warning: %s: device supports setting receiving timeout but LIRC_GET_MIN_TIMEOUT returns: %m\n"), dev);