From 670027c507e99521d416994a18a498def9ef2ea3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Sat, 22 Oct 2016 19:31:08 -0300 Subject: Linux-libre 4.8.3-gnu --- .../DocBook/media/v4l/vidioc-g-modulator.xml | 252 --------------------- 1 file changed, 252 deletions(-) delete mode 100644 Documentation/DocBook/media/v4l/vidioc-g-modulator.xml (limited to 'Documentation/DocBook/media/v4l/vidioc-g-modulator.xml') diff --git a/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml b/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml deleted file mode 100644 index 96e17b344..000000000 --- a/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml +++ /dev/null @@ -1,252 +0,0 @@ - - - ioctl VIDIOC_G_MODULATOR, VIDIOC_S_MODULATOR - &manvol; - - - - VIDIOC_G_MODULATOR - VIDIOC_S_MODULATOR - Get or set modulator attributes - - - - - - int ioctl - int fd - int request - struct v4l2_modulator -*argp - - - - - int ioctl - int fd - int request - const struct v4l2_modulator -*argp - - - - - - Arguments - - - - fd - - &fd; - - - - request - - VIDIOC_G_MODULATOR, VIDIOC_S_MODULATOR - - - - argp - - - - - - - - - Description - - To query the attributes of a modulator applications initialize -the index field and zero out the -reserved array of a &v4l2-modulator; and -call the VIDIOC_G_MODULATOR ioctl with a pointer -to this structure. Drivers fill the rest of the structure or return an -&EINVAL; when the index is out of bounds. To enumerate all modulators -applications shall begin at index zero, incrementing by one until the -driver returns EINVAL. - - Modulators have two writable properties, an audio -modulation set and the radio frequency. To change the modulated audio -subprograms, applications initialize the index - and txsubchans fields and the -reserved array and call the -VIDIOC_S_MODULATOR ioctl. Drivers may choose a -different audio modulation if the request cannot be satisfied. However -this is a write-only ioctl, it does not return the actual audio -modulation selected. - - SDR specific modulator types are -V4L2_TUNER_SDR and V4L2_TUNER_RF. -For SDR devices txsubchans field must be -initialized to zero. -The term 'modulator' means SDR transmitter in this context. - - To change the radio frequency the &VIDIOC-S-FREQUENCY; ioctl -is available. - - - struct <structname>v4l2_modulator</structname> - - &cs-str; - - - __u32 - index - Identifies the modulator, set by the -application. - - - __u8 - name[32] - Name of the modulator, a NUL-terminated ASCII -string. This information is intended for the user. - - - __u32 - capability - Modulator capability flags. No flags are defined -for this field, the tuner flags in &v4l2-tuner; -are used accordingly. The audio flags indicate the ability -to encode audio subprograms. They will not -change for example with the current video standard. - - - __u32 - rangelow - The lowest tunable frequency in units of 62.5 -KHz, or if the capability flag -V4L2_TUNER_CAP_LOW is set, in units of 62.5 -Hz, or if the capability flag -V4L2_TUNER_CAP_1HZ is set, in units of 1 Hz. - - - __u32 - rangehigh - The highest tunable frequency in units of 62.5 -KHz, or if the capability flag -V4L2_TUNER_CAP_LOW is set, in units of 62.5 -Hz, or if the capability flag -V4L2_TUNER_CAP_1HZ is set, in units of 1 Hz. - - - __u32 - txsubchans - With this field applications can determine how -audio sub-carriers shall be modulated. It contains a set of flags as -defined in . Note the tuner -rxsubchans flags are reused, but the -semantics are different. Video output devices are assumed to have an -analog or PCM audio input with 1-3 channels. The -txsubchans flags select one or more -channels for modulation, together with some audio subprogram -indicator, for example a stereo pilot tone. - - - __u32 - type - Type of the modulator, see . - - - __u32 - reserved[3] - Reserved for future extensions. Drivers and -applications must set the array to zero. - - - -
- - - Modulator Audio Transmission Flags - - &cs-def; - - - V4L2_TUNER_SUB_MONO - 0x0001 - Modulate channel 1 as mono audio, when the input -has more channels, a down-mix of channel 1 and 2. This flag does not -combine with V4L2_TUNER_SUB_STEREO or -V4L2_TUNER_SUB_LANG1. - - - V4L2_TUNER_SUB_STEREO - 0x0002 - Modulate channel 1 and 2 as left and right -channel of a stereo audio signal. When the input has only one channel -or two channels and V4L2_TUNER_SUB_SAP is also -set, channel 1 is encoded as left and right channel. This flag does -not combine with V4L2_TUNER_SUB_MONO or -V4L2_TUNER_SUB_LANG1. When the driver does not -support stereo audio it shall fall back to mono. - - - V4L2_TUNER_SUB_LANG1 - 0x0008 - Modulate channel 1 and 2 as primary and secondary -language of a bilingual audio signal. When the input has only one -channel it is used for both languages. It is not possible to encode -the primary or secondary language only. This flag does not combine -with V4L2_TUNER_SUB_MONO, -V4L2_TUNER_SUB_STEREO or -V4L2_TUNER_SUB_SAP. If the hardware does not -support the respective audio matrix, or the current video standard -does not permit bilingual audio the -VIDIOC_S_MODULATOR ioctl shall return an &EINVAL; -and the driver shall fall back to mono or stereo mode. - - - V4L2_TUNER_SUB_LANG2 - 0x0004 - Same effect as -V4L2_TUNER_SUB_SAP. - - - V4L2_TUNER_SUB_SAP - 0x0004 - When combined with V4L2_TUNER_SUB_MONO - the first channel is encoded as mono audio, the last -channel as Second Audio Program. When the input has only one channel -it is used for both audio tracks. When the input has three channels -the mono track is a down-mix of channel 1 and 2. When combined with -V4L2_TUNER_SUB_STEREO channel 1 and 2 are -encoded as left and right stereo audio, channel 3 as Second Audio -Program. When the input has only two channels, the first is encoded as -left and right channel and the second as SAP. When the input has only -one channel it is used for all audio tracks. It is not possible to -encode a Second Audio Program only. This flag must combine with -V4L2_TUNER_SUB_MONO or -V4L2_TUNER_SUB_STEREO. If the hardware does not -support the respective audio matrix, or the current video standard -does not permit SAP the VIDIOC_S_MODULATOR ioctl -shall return an &EINVAL; and driver shall fall back to mono or stereo -mode. - - - V4L2_TUNER_SUB_RDS - 0x0010 - Enable the RDS encoder for a radio FM transmitter. - - - -
- - - - &return-value; - - - - EINVAL - - The &v4l2-modulator; -index is out of bounds. - - - - - -- cgit v1.2.3