From: Daniel Mack <zonque@gmail.com>
To: alsa-devel@alsa-project.org
Cc: stable@kernel.org, Daniel Mack <zonque@gmail.com>
Subject: [PATCH 5/5] ALSA: snd-usb: Accept UAC2 FORMAT_TYPE descriptors with bLength > 6
Date: Wed, 13 Jul 2011 02:13:29 +0200 [thread overview]
Message-ID: <1310516009-4387-5-git-send-email-zonque@gmail.com> (raw)
In-Reply-To: <1310516009-4387-1-git-send-email-zonque@gmail.com>
The Focusrite Scarlett 18i6 USB has them that way, which is probably a
bug. Anyway, the driver should simply ignore this fact.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reported-by: Nicolai Krakowiak <nicolai.krakowiak@gmail.com>
Cc: stable@kernel.org
---
sound/usb/endpoint.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index af59bd7..b558c67 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -352,7 +352,7 @@ int snd_usb_parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
continue;
}
if (((protocol == UAC_VERSION_1) && (fmt->bLength < 8)) ||
- ((protocol == UAC_VERSION_2) && (fmt->bLength != 6))) {
+ ((protocol == UAC_VERSION_2) && (fmt->bLength < 6))) {
snd_printk(KERN_ERR "%d:%u:%d : invalid UAC_FORMAT_TYPE desc (protocol %d, bLength %d)\n",
dev->devnum, iface_no, altno, protocol, fmt->bLength);
continue;
--
1.7.5.4
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next prev parent reply other threads:[~2011-07-13 0:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-13 0:13 [PATCH 1/5] ALSA: snd-usb: don't fail hard if mixer creation fails Daniel Mack
2011-07-13 0:13 ` [PATCH 2/5] ALSA: snd-usb: use snd_printk() instead of printk() Daniel Mack
2011-07-13 5:31 ` Takashi Iwai
2011-07-13 0:13 ` [PATCH 3/5] ALSA: snd-usb: be more verbose about bogus UAC_FORMAT_TYPE descriptors Daniel Mack
2011-07-13 0:13 ` [PATCH 4/5] ALSA: snd-usb: ignore mixer units of type UAC2_EXTENSION_UNIT_V2 Daniel Mack
2011-07-13 0:13 ` Daniel Mack [this message]
2011-07-13 5:29 ` [PATCH 1/5] ALSA: snd-usb: don't fail hard if mixer creation fails Takashi Iwai
2011-07-13 12:06 ` Daniel Mack
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