diff options
Diffstat (limited to 'Documentation/sound/hd-audio/notes.rst')
| -rw-r--r-- | Documentation/sound/hd-audio/notes.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/sound/hd-audio/notes.rst b/Documentation/sound/hd-audio/notes.rst index cf4d7158af78..d118b6fe269b 100644 --- a/Documentation/sound/hd-audio/notes.rst +++ b/Documentation/sound/hd-audio/notes.rst @@ -215,6 +215,17 @@ There are a few special model option values: * when ``generic`` is passed, the codec-specific parser is skipped and only the generic parser is used. +A new style for the model option that was introduced since 5.15 kernel +is to pass the PCI or codec SSID in the form of ``model=XXXX:YYYY`` +where XXXX and YYYY are the sub-vendor and sub-device IDs in hex +numbers, respectively. This is a kind of aliasing to another device; +when this form is given, the driver will refer to that SSID as a +reference to the quirk table. It'd be useful especially when the +target quirk isn't listed in the model table. For example, passing +model=103c:8862 will apply the quirk for HP ProBook 445 G8 (which +isn't found in the model table as of writing) as long as the device is +handled equivalently by the same driver. + Speaker and Headphone Output ---------------------------- |