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author | Jiri Kosina <jkosina@suse.cz> | 2017-11-15 11:04:13 +0100 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2017-11-15 11:04:13 +0100 |
commit | 5cc619db5c34146ee821acd08382b9d78579b52e (patch) | |
tree | ee28e3cefdb35d56e33887f05db0a50589aa5883 /Documentation/media/uapi/dvb/dmx-get-stc.rst | |
parent | Merge branch 'for-4.14/upstream-fixes' into for-linus (diff) | |
parent | HID: alps: add new U1 device ID (diff) | |
download | linux-5cc619db5c34146ee821acd08382b9d78579b52e.tar.xz linux-5cc619db5c34146ee821acd08382b9d78579b52e.zip |
Merge branch 'for-4.15/alps' into for-linus
- New ALPS touchpad (T4, found currently on HP EliteBook 1000, Zbook Stduio
and HP Elite book x360) support from Masaki Ota
Diffstat (limited to 'Documentation/media/uapi/dvb/dmx-get-stc.rst')
-rw-r--r-- | Documentation/media/uapi/dvb/dmx-get-stc.rst | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/Documentation/media/uapi/dvb/dmx-get-stc.rst b/Documentation/media/uapi/dvb/dmx-get-stc.rst index 9fc501e8128a..604031f7904b 100644 --- a/Documentation/media/uapi/dvb/dmx-get-stc.rst +++ b/Documentation/media/uapi/dvb/dmx-get-stc.rst @@ -25,34 +25,42 @@ Arguments File descriptor returned by :c:func:`open() <dvb-dmx-open>`. ``stc`` - Pointer to the location where the stc is to be stored. + Pointer to :c:type:`dmx_stc` where the stc data is to be stored. Description ----------- This ioctl call returns the current value of the system time counter -(which is driven by a PES filter of type DMX_PES_PCR). Some hardware -supports more than one STC, so you must specify which one by setting the -num field of stc before the ioctl (range 0...n). The result is returned -in form of a ratio with a 64 bit numerator and a 32 bit denominator, so -the real 90kHz STC value is stc->stc / stc->base . +(which is driven by a PES filter of type :c:type:`DMX_PES_PCR <dmx_ts_pes>`). +Some hardware supports more than one STC, so you must specify which one by +setting the :c:type:`num <dmx_stc>` field of stc before the ioctl (range 0...n). +The result is returned in form of a ratio with a 64 bit numerator +and a 32 bit denominator, so the real 90kHz STC value is +``stc->stc / stc->base``. 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 -:ref:`Generic Error Codes <gen-errors>` chapter. +On success 0 is returned. + +On error -1 is returned, and the ``errno`` variable is set +appropriately. + +.. tabularcolumns:: |p{2.5cm}|p{15.0cm}| .. flat-table:: :header-rows: 0 :stub-columns: 0 - + :widths: 1 16 - .. row 1 - ``EINVAL`` - Invalid stc number. + + +The generic error codes are described at the +:ref:`Generic Error Codes <gen-errors>` chapter. |