Migrate usb_audio to "hmulti" new audio architecture

[pulkomandy]

It is one of the last drivers not migrated yet (together with "cmedia"). Both are disabled currently. It would be nice to move them over and remove support for the "old" audio sytem. Are there reason this is not done yet?

[waddlesplash]

Er, is it? I am pretty sure it does use hmulti...

[pulkomandy]

At least the jamfiles have it as a SYSTEM_ADD_ONS_DRIVERS_AUDIO_OLD driver instead of SYSTEM_ADD_ONS_DRIVER_AUDIO (the later is what gets copied to the "hmulti" directory), and installing it that way seems to work fine as far as media server is concerned?

[waddlesplash]

But the device in /dev/ is exposed under hmulti, IIRC?

[waddlesplash]

Perhaps the "old" here refers to the driver architecture, not the audio interface?

[pulkomandy]

There are two directories under audio called "old" and "hmulti", so if that's the case, that naming would be extremely confusing. Also, newstyle drivers don't need symlinks in the drivers dev/ directory, they need to be loaded from thedevice manager instead, so that's not it. Both "old" and "hmulti" drivers are BeOS-style and not device manager based drivers.

[waddlesplash]

The driver already seems to use the "hmulti" interface.