Comment 9 for bug 1357928
Revision history for this message
| Raymond (superquad-vortex2) wrote Re: [HDA-Intel - HDA Intel MID, playback] volume slider problem - Slide to bottom and sound stays off even when slider moved up again | #9 |
Node 0x15 [Audio Output] wcaps 0xd0c05: Stereo Amp-Out R/L
bit 3 and bit 4 of wcaps
7.3.4.6 Audio Widget Capabilities The Audio Capabilities control returns a set of bit fields describing the audio capabilities of the widget. Parameter ID: 09h
If Amp Param Override is a 1, the widget contains its own amplifier parameters. If this bit is a 0, then the Audio Function node must contain default amplifier parameters, and they should be used to define all amplifier parameters (both input and output) in this widget.
If (In|Out) AmpPresent is a 1, the widget contains an input or output amplifier, as indicated. The Amp Param Override bit should be examined to determine whether the widget contains default amplifier parameters or has amplifier parameters that need to be explicitly queried. The “In Amp Present” bit is only relevant for Sum Widgets, Input Converters, and Pin Complexes. The “Out Amp Present” bit is only relevant for Selector Widgets, Sum Widgets, Output Converter Widgets, and Pin Complex Widgets.