Signed-off-by: Sean Young <sean@xxxxxxxx> --- man4/lirc.4 | 24 +++++++++++++++++++++--- 1 file changed, 21 insertions(+), 3 deletions(-) diff --git a/man4/lirc.4 b/man4/lirc.4 index e28a46377..0844f60cc 100644 --- a/man4/lirc.4 +++ b/man4/lirc.4 @@ -187,7 +187,11 @@ If a driver does not announce support of certain features, calling of the corresponding ioctls will return ENOTTY. .TP .BR LIRC_GET_REC_MODE " (\fIvoid\fP)" -Return the receive mode, which will be one of: +If the +.B lirc +device has no receiver return +.B ENOTTY, +else return the receive mode, which will be one of: .RS 4 .TP .BR LIRC_MODE_MODE2 @@ -207,6 +211,10 @@ is either .BR LIRC_MODE_SCANCODE or .BR LIRC_MODE_MODE2 . +If the +.B lirc +device has no receiver, return +.B ENOTTY. .TP .BR LIRC_GET_SEND_MODE " (\fIvoid\fP)" Return the send mode. @@ -214,6 +222,10 @@ Return the send mode. or .BR LIRC_MODE_SCANCODE is supported. +If the +.B lirc +device cannot send, return +.B ENOTTY. .TP .BR LIRC_SET_SEND_MODE " (\fIint\fP)" Set the send mode. @@ -221,7 +233,12 @@ Set the send mode. is either .BR LIRC_MODE_SCANCODE or -.BR LIRC_MODE_PULSE. +.BR LIRC_MODE_PULSE . +If the +.B lirc +device cannot send, return +.B ENOTTY +. .TP .BR LIRC_SET_SEND_CARRIER " (\fIint\fP)" Set the modulation frequency. @@ -252,7 +269,8 @@ For such drivers, .BR LIRC_GET_MIN_TIMEOUT and .BR LIRC_GET_MAX_TIMEOUT -will return the same value. +will return +.BR ENOTTY . .TP .BR LIRC_SET_REC_TIMEOUT " (\fIint\fP)" Set the integer value for IR inactivity timeout (microseconds). -- 2.17.2
