From: Timo Gurr Date: Mon, 3 May 2021 11:08:22 +0000 (+0200) Subject: ALSA: usb-audio: Add dB range mapping for Sennheiser Communications Headset PC 8 X-Git-Tag: v4.19.191~346 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=761463122b193a3bde248040b6d3caf637a43676;p=thirdparty%2Fkernel%2Fstable.git ALSA: usb-audio: Add dB range mapping for Sennheiser Communications Headset PC 8 commit ab2165e2e6ed17345ffa8ee88ca764e8788ebcd7 upstream. The decibel volume range contains a negative maximum value resulting in pipewire complaining about the device and effectivly having no sound output. The wrong values also resulted in the headset sounding muted already at a mixer level of about ~25%. PipeWire BugLink: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1049 BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=212897 Signed-off-by: Timo Gurr Cc: Link: https://lore.kernel.org/r/20210503110822.10222-1-tiwai@suse.de Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c index d2b500a1184bf..1d4e535e2c117 100644 --- a/sound/usb/mixer_maps.c +++ b/sound/usb/mixer_maps.c @@ -351,6 +351,13 @@ static const struct usbmix_name_map bose_companion5_map[] = { { 0 } /* terminator */ }; +/* Sennheiser Communications Headset [PC 8], the dB value is reported as -6 negative maximum */ +static const struct usbmix_dB_map sennheiser_pc8_dB = {-9500, 0}; +static const struct usbmix_name_map sennheiser_pc8_map[] = { + { 9, NULL, .dB = &sennheiser_pc8_dB }, + { 0 } /* terminator */ +}; + /* * Dell usb dock with ALC4020 codec had a firmware problem where it got * screwed up when zero volume is passed; just skip it as a workaround @@ -633,5 +640,10 @@ static const struct usbmix_ctl_map uac3_badd_usbmix_ctl_maps[] = { .id = UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE, .map = uac3_badd_speakerphone_map, }, + { + /* Sennheiser Communications Headset [PC 8] */ + .id = USB_ID(0x1395, 0x0025), + .map = sennheiser_pc8_map, + }, { 0 } /* terminator */ };