Hi, These are patches implementing volume and mute support in audio gadget from Ruslan Bilovol https://patchwork.kernel.org/project/linux-usb/list/?series=439931 rebased for the latest async feedback patches (Ruslan authored, Jerome modified) already pushed to mainline. Patches 1 and 4 are basically intact, patches for f_uac2 had to be modified for the changes in the final feedback patches. I tested the f_uac2 code to work correctly. Rebased patches for switching among multiple rates originally authored by Julian Sheel https://lore.kernel.org/patchwork/patch/803422/ are to follow, thank you for reviewing and accepting this patchset first. Best regards, Pavel Hofman.
