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authorArun Raghavan <arunr@valvesoftware.com>2026-01-16 14:58:04 -0800
committerTakashi Iwai <tiwai@suse.de>2026-01-17 09:30:15 +0100
commit6b971191fcfc9e3c2c0143eea22534f1f48dbb62 (patch)
tree51fc0c47b2d8628ef16f9078e436569effa551fd /sound/usb
parent46b8d0888f01f250fbd24d00ff80b755c3c42cd4 (diff)
ALSA: usb: Increase volume range that triggers a warning
On at least the HyperX Cloud III, the range is 18944 (-18944 -> 0 in steps of 1), so the original check for 255 steps is definitely obsolete. Let's give ourselves a little more headroom before we emit a warning. Fixes: 80acefff3bc7 ("ALSA: usb-audio - Add volume range check and warn if it too big") Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: linux-sound@vger.kernel.org Signed-off-by: Arun Raghavan <arunr@valvesoftware.com> Link: https://patch.msgid.link/20260116225804.3845935-1-arunr@valvesoftware.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
-rw-r--r--sound/usb/mixer.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 3af71d42b9b9..90917c6ea871 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1813,11 +1813,10 @@ static void __build_feature_ctl(struct usb_mixer_interface *mixer,
range = (cval->max - cval->min) / cval->res;
/*
- * Are there devices with volume range more than 255? I use a bit more
- * to be sure. 384 is a resolution magic number found on Logitech
- * devices. It will definitively catch all buggy Logitech devices.
+ * There are definitely devices with a range of ~20,000, so let's be
+ * conservative and allow for a bit more.
*/
- if (range > 384) {
+ if (range > 65535) {
usb_audio_warn(mixer->chip,
"Warning! Unlikely big volume range (=%u), cval->res is probably wrong.",
range);