[alsa-devel] [PATCH v3 1/2] ASoC: core: Add API to use DMI name in sound card long name

[Takashi Iwai]

On Tue, 10 Jan 2017 07:42:49 +0100,
mengdong.lin at linux.intel.com wrote:
> 
> +/**
> + * snd_soc_set_dmi_name() - Register DMI names to card
> + * @card: The card to register DMI names
> + * @flavour: The flavour "differentiator" for the card amongst its peers.
> + *
> + * An Intel machine driver may be used by many different devices but are
> + * difficult for userspace to differentiate, since machine drivers ususally
> + * use their own name as the card name (short name) and leave the card long
> + * name blank. To differentiate such devices and fix bugs due to lack of
> + * device-specific configurations, this function allows DMI info to be used
> + * as the sound card long name, in the format of
> + * "vendor.product.version.board"
> + * (Character '.' are used to separate different DMI fields here).
> + * This will help the userspace to load the correct UCM (Use Case Manager)
> + * configuration.
> + *
> + * Possible card long names may be:
> + * DellInc..XPS139343.01.0310JH
> + * ASUSTeKCOMPUTERINC..T100TA.1.0.T100TA
> + * Circuitco.MinnowboardMaxD0PLATFORM.D0.MinnowBoardMAX
> + * (Please note DMI can also include '.' like"Inc." so you may see double '.
'
> + * sometimes)

Looking at the examples above, I wonder whether the dot is the best
choice as the separator.  Might other letters (e.g. ":" or "=") would
be clearer?  The colon might be bad if it were combined with the
alsa-lib plugin syntax, but I guess it won't happen?


thanks,

Takashi