# USB audio quirks configuration
# Apply device-specific workarounds for USB audio interfaces
#
# Find your device VID/PID with: lsusb | grep -i audio
# Then uncomment the matching line below.

# ── General optimizations ────────────────────────────

# Reduce USB transfer latency by disabling implicit feedback buffering
options snd-usb-audio nrpacks=1

# ── Focusrite Scarlett 18i20 (3rd Gen) ───────────────
# VID=0x1235 PID=0x8210
# Device setup 1 enables ALSA mixer controls for routing
# options snd-usb-audio vid=0x1235 pid=0x8210 device_setup=1

# ── Behringer UMC1820 ────────────────────────────────
# VID=0x1397 PID=0x0508
# Implicit feedback sync for clock stability
# options snd-usb-audio vid=0x1397 pid=0x0508 implicit_fb=1

# ── Behringer UMC404HD ───────────────────────────────
# VID=0x1397 PID=0x0509
# options snd-usb-audio vid=0x1397 pid=0x0509 implicit_fb=1

# ── Behringer UMC204HD ───────────────────────────────
# VID=0x1397 PID=0x0507
# options snd-usb-audio vid=0x1397 pid=0x0507 implicit_fb=1

# ── Zoom UAC-8 ───────────────────────────────────────
# VID=0x1686 PID=0x0160
# options snd-usb-audio vid=0x1686 pid=0x0160 nrpacks=1

# ── RME Babyface Pro FS ──────────────────────────────
# Class-compliant mode — no quirks needed, works OOTB
# Just ensure the interface is in "CC" (Class Compliant) mode