bmAtributes offset doesn't exist in the UAC3 CS_EP descriptor. Hence, checking for pitch control as if it was UAC2 doesn't make any sense. Use the defined UAC3 offsets instead.
Signed-off-by: Jorge Sanjuan <[email protected]> --- sound/usb/stream.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/sound/usb/stream.c b/sound/usb/stream.c index 764be07474a8..6b2924533d8d 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -576,7 +576,7 @@ static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip, if (protocol == UAC_VERSION_1) { attributes = csep->bmAttributes; - } else { + } else if (protocol == UAC_VERSION_2) { struct uac2_iso_endpoint_descriptor *csep2 = (struct uac2_iso_endpoint_descriptor *) csep; @@ -585,6 +585,13 @@ static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip, /* emulate the endpoint attributes of a v1 device */ if (csep2->bmControls & UAC2_CONTROL_PITCH) attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL; + } else { /* UAC_VERSION_3 */ + struct uac3_iso_endpoint_descriptor *csep3 = + (struct uac3_iso_endpoint_descriptor *) csep; + + /* emulate the endpoint attributes of a v1 device */ + if (le32_to_cpu(csep3->bmControls) & UAC2_CONTROL_PITCH) + attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL; } return attributes; -- 2.11.0
