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| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-09-01 12:15:43 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-09-05 06:16:37 -0400 |
| commit | 9a721b9b4b0e3d0b998a68bd619b2e94f6e99eb9 (patch) | |
| tree | 85309ffed01e67b66f32abfff0b2c3eaaac20995 /Documentation/media/uapi/dvb/frontend_f_open.rst | |
| parent | 4e3b0cab6d18461d74769a5e504a7a95eb2299d8 (diff) | |
| download | linux-9a721b9b4b0e3d0b998a68bd619b2e94f6e99eb9.tar.gz linux-9a721b9b4b0e3d0b998a68bd619b2e94f6e99eb9.tar.bz2 linux-9a721b9b4b0e3d0b998a68bd619b2e94f6e99eb9.zip | |
media: dvb uAPI docs: adjust return value ioctl descriptions
There are several issues on the return value for ioctls:
- Text is confusing;
- Some error codes don't exist;
- The non-generic error codes should come before the text
that points to the generic error codes;
- Tables don't contain column size hints;
- Some references are not marked as such.
Correct them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/media/uapi/dvb/frontend_f_open.rst')
| -rw-r--r-- | Documentation/media/uapi/dvb/frontend_f_open.rst | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/Documentation/media/uapi/dvb/frontend_f_open.rst b/Documentation/media/uapi/dvb/frontend_f_open.rst index 690eb375bdc1..4c25ece73da1 100644 --- a/Documentation/media/uapi/dvb/frontend_f_open.rst +++ b/Documentation/media/uapi/dvb/frontend_f_open.rst @@ -79,24 +79,32 @@ On error, -1 is returned, and the ``errno`` variable is set appropriately. Possible error codes are: -EACCES - The caller has no permission to access the device. -EBUSY - The the device driver is already in use. +On success 0 is returned, and :c:type:`ca_slot_info` is filled. -ENXIO - No device corresponding to this device special file exists. +On error -1 is returned, and the ``errno`` variable is set +appropriately. -ENOMEM - Not enough kernel memory was available to complete the request. +.. tabularcolumns:: |p{2.5cm}|p{15.0cm}| -EMFILE - The process already has the maximum number of files open. +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 1 16 -ENFILE - The limit on the total number of files open on the system has been - reached. + - - ``EPERM`` + - The caller has no permission to access the device. -ENODEV - The device got removed. + - - ``EBUSY`` + - The the device driver is already in use. + + - - ``EMFILE`` + - The process already has the maximum number of files open. + + - - ``ENFILE`` + - The limit on the total number of files open on the system has been + reached. + + +The generic error codes are described at the +:ref:`Generic Error Codes <gen-errors>` chapter. |