I have a /etc/asound.conf file that has the following in it:
pcm.playback
{
type plug
slave.pcm
{
@func concat
strings [ "dmix:CARD="
{
@func getenv
vars [ ALSA_CARD ]
default "0"
}
",DEV="
{
@func getenv
vars [ ALSA_DEVICE ]
default 0
}
]
}
}
I believe that we can find the index of the card ("PCH" in my case)
from its name with:
{
@func card_inum
card 'PCH'
}
But there does not seem to be a way to find the DEV= value.
We currently scan the pcm?p/info files looking for the device
name we are interested in, for example "HDMI 1".
Is it safe to rely on the device index not changing over reboots
and hot plugs for a card's "HDMI 1"? Or is there a better way to
get the DEV= value from a string?
Barry
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