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-rw-r--r--sound/usb/quirks.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 7c4fe5a634f..a2ac004bbd9 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -165,8 +165,10 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
return -EINVAL;
}
alts = &iface->altsetting[fp->altset_idx];
- fp->datainterval = snd_usb_parse_datainterval(chip, alts);
- fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
+ if (fp->datainterval == 0)
+ fp->datainterval = snd_usb_parse_datainterval(chip, alts);
+ if (fp->maxpacksize == 0)
+ fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
usb_set_interface(chip->dev, fp->iface, 0);
snd_usb_init_pitch(chip, fp->iface, alts, fp);
snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);