lirc.4: Remove ioctls and feature bits which were never implemented

The lirc header file included ioctls and feature bits which were
never implemented by any driver. They were removed in kernel
commit d55f09abe24b4dfadab246b6f217da547361cdb6

Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reported-by: Alec Leamas <leamas.alec@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man4/lirc.4

@@ -78,9 +78,7 @@ The package reflects a timeout; see the
 .B LIRC_SET_REC_TIMEOUT_REPORTS
 ioctl.
 .\"
-.SS Reading input with the
-.B LIRC_MODE_LIRCCODE
-drivers
+.SS Reading input with the LIRC_MODE_LIRCCODE drivers
 .PP
 In the \fBLIRC_MODE_LIRCCODE\fR
 mode, the data returned by
@@ -204,17 +202,11 @@ Currently serves no purpose since only
 .BR LIRC_MODE_PULSE
 is supported.
 .TP
-.BR LIRC_GET_SEND_CARRIER " (\fIvoid\fP)"
-Get the modulation frequency (Hz).
-.TP
 .BR LIRC_SET_SEND_CARRIER " (\fIint\fP)"
 Set the modulation frequency.
 The argument is the frequency (Hz).
 .TP
-.BR LIRC_GET_SEND_CARRIER " (\fIvoid\fP)"
-Get the modulation frequency used when decoding (Hz).
-.TP
-.BR SET_SEND_DUTY_CYCLE " (\fIint\fP)"
+.BR LIRC_SET_SEND_DUTY_CYCLE " (\fIint\fP)"
 Set the carrier duty cycle.
 .I val
 is a number in the range [0,100] which
@@ -284,36 +276,6 @@ By default this should be turned off.
 .BR LIRC_GET_REC_RESOLUTION " (\fIvoid\fP)"
 Return the driver resolution (microseconds).
 .TP
-.BR LIRC_GET_MIN_FILTER_PULSE " (\fIvoid\fP)", " " \
-LIRC_GET_MAX_FILTER_PULSE " (\fIvoid\fP)"
-Some devices are able to filter out spikes in the incoming signal
-using given filter rules.
-These ioctls return the hardware capabilities that describe the bounds
-of the possible filters.
-Filter settings depend on the IR protocols that are expected.
-.BR lircd (8)
-derives the settings from all protocols definitions found in its
-.BR lircd.conf (5)
-config file.
-.TP
-.BR LIRC_GET_MIN_FILTER_SPACE " (\fIvoid\fP)", " " \
-LIRC_GET_MAX_FILTER_SPACE " (\fIvoid\fP)"
-See
-.BR LIRC_GET_MIN_FILTER_PULSE .
-.TP
-.BR LIRC_SET_REC_FILTER " (\fIint\fP)"
-Pulses/spaces shorter than this (microseconds) are filtered out by
-hardware.
-.TP
-.BR LIRC_SET_REC_FILTER_PULSE " (\fIint\fP)", " " \
-LIRC_SET_REC_FILTER_SPACE " (\fIint\fP)"
-Pulses/spaces shorter than this (microseconds) are filtered out by
-hardware.
-If filters cannot be set independently for pulse/space, the
-corresponding ioctls must return an error and
-.BR LIRC_SET_REC_FILTER
-should be used instead.
-.TP
 .BR LIRC_SET_TRANSMITTER_MASK
 Enable the set of transmitters specified in
 .IR val ,
@@ -343,32 +305,6 @@ carrier reports.
 In that case, it will be disabled as soon as you disable carrier reports.
 Trying to disable a wide band receiver while carrier reports are active
 will do nothing.
-.TP
-.BR LIRC_SETUP_START " (\fIvoid\fP), " LIRC_SETUP_END " (\fIvoid\fP)"
-Setting of several driver parameters can be optimized by bracketing
-the actual ioctl calls
-.BR LIRC_SETUP_START
-and
-.BR LIRC_SETUP_END .
-When a driver receives a
-.BR LIRC_SETUP_START
-ioctl, it can choose to not commit further setting changes to the
-hardware until a
-.BR LIRC_SETUP_END
-is received.
-But this is open to the driver implementation and every driver
-must also handle parameter changes which are not encapsulated by
-.BR LIRC_SETUP_START
-and
-.BR LIRC_SETUP_END .
-Drivers can also choose to ignore these ioctls.
-.TP
-.BR LIRC_NOTIFY_DECODE " (\fIvoid\fP)"
-This ioctl is called by
-.BR lircd (8)
-whenever a successful decoding of an incoming IR signal is possible.
-This can be used by supporting hardware to give visual user
-feedback, for example by flashing an LED.
 .\"
 .SH FEATURES
 .PP
@@ -378,14 +314,6 @@ The
 ioctl returns a bit mask describing features of the driver.
 The following bits may be returned in the mask:
 .TP
-.BR LIRC_CAN_REC_RAW
-The driver is capable of receiving using
-.BR LIRC_MODE_RAW .
-.TP
-.BR LIRC_CAN_REC_PULSE
-The driver is capable of receiving using
-.BR LIRC_MODE_PULSE .
-.TP
 .BR LIRC_CAN_REC_MODE2
 The driver is capable of receiving using
 .BR LIRC_MODE_MODE2 .
@@ -426,10 +354,6 @@ The driver supports
 The driver supports
 .BR LIRC_SET_REC_TIMEOUT .
 .TP
-.BR LIRC_CAN_SET_REC_FILTER
-The driver supports
-.BR LIRC_SET_REC_FILTER .
-.TP
 .BR LIRC_CAN_MEASURE_CARRIER
 The driver supports measuring of the modulation frequency using
 .BR LIRC_SET_MEASURE_CARRIER_MODE .
@@ -438,22 +362,10 @@ The driver supports measuring of the modulation frequency using
 The driver supports learning mode using
 .BR LIRC_SET_WIDEBAND_RECEIVER .
 .TP
-.BR LIRC_CAN_NOTIFY_DECODE
-The driver supports
-.BR LIRC_NOTIFY_DECODE .
-.TP
-.BR LIRC_CAN_SEND_RAW
-The driver supports sending using
-.BR LIRC_MODE_RAW .
-.TP
 .BR LIRC_CAN_SEND_PULSE
 The driver supports sending using
 .BR LIRC_MODE_PULSE .
 .TP
-.BR LIRC_CAN_SEND_MODE2
-The driver supports sending using
-.BR LIRC_MODE_MODE2 .
-.TP
 .BR LIRC_CAN_SEND_LIRCCODE
 The driver supports sending.
 (This is uncommon, since