@@ -6,18 +6,20 @@
FE_READ_SNR
***********
-DESCRIPTION
+Description
+-----------
This ioctl call returns the signal-to-noise ratio for the signal
currently received by the front-end. For this command, read-only access
to the device is sufficient.
-SYNOPSIS
+Synopsis
+--------
-int ioctl(int fd, int request = :ref:`FE_READ_SNR`,
-uint16_t *snr);
+.. c:function:: int ioctl(int fd, int request = FE_READ_SNR, int16_t *snr)
-PARAMETERS
+Arguments
+----------
@@ -40,12 +42,13 @@ PARAMETERS
- .. row 3
- - uint16_t *snr
+ - uint16_t \*snr
- - The signal-to-noise ratio is stored into *snr.
+ - The signal-to-noise ratio is stored into \*snr.
-RETURN VALUE
+Return Value
+------------
On success 0 is returned, on error -1 and the ``errno`` variable is set
appropriately. The generic error codes are described at the
Parsing this file were causing lots of warnings with sphinx, due to the c function prototypes. Fix that by prepending them with .. c:function:: While here, use the same way we document man-like pages, at the V4L side of the book and add escapes to asterisks. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> --- Documentation/linux_tv/media/dvb/FE_READ_SNR.rst | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-)