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Tue, 29 Sep 2026 12:03:26 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id ZpXjHA6pu2q0PAAAD6G6ig (envelope-from ); Tue, 29 Sep 2026 12:03:26 +0000 From: Takashi Iwai To: linux-sound@vger.kernel.org Cc: Jan Lentfer , linux-kernel@vger.kernel.org Subject: [PATCH] ALSA: usb-audio: Apply boot quirk for some Behringer models Date: Tue, 29 Sep 2026 14:03:06 +0200 Message-ID: <20260929120309.1460348-1-tiwai@suse.de> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[100.00%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_SOME(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[web.de,vger.kernel.org]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim,suse.de:email,suse.de:mid,imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns]; RCPT_COUNT_THREE(0.00)[3]; RCVD_VIA_SMTP_AUTH(0.00)[]; DKIM_TRACE(0.00)[suse.de:+]; FREEMAIL_ENVRCPT(0.00)[web.de] X-Spam-Score: -3.01 X-Spam-Level: X-Rspamd-Action: no action X-Rspamd-Queue-Id: D0F3B1F76B X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spam-Flag: NO Jan reported that a few Behringer devices became broken since the recent optimization to avoid usb_string() call at probe time at the commit b364a0d23cae ("ALSA: usb-audio: Use strings in struct usb_dev for manufacturer & co"). Interestingly, the devices seem requiring the explicit descriptor read at probing time, and the optimization above dropped it. There is already a boot quirk for another model, Behringer CM1A (1397:1234), that adds a device descriptor read, and this seems working for them, too. So just apply the same boot quirk to those affected models: - Behringer K-2 Mk II (1397:1230) - Behringer Kobol Expander (1397:1249) - Behringer 2-XM (1397:1256) Fixes: b364a0d23cae ("ALSA: usb-audio: Use strings in struct usb_dev for manufacturer & co") Reported-and-tested-by: Jan Lentfer Closes: https://lore.kernel.org/e7087d42-5e74-4d85-b1c5-b11eff235d41@web.de Signed-off-by: Takashi Iwai --- sound/usb/quirks.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 294c7026b93c..de6a82a42eb7 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1702,7 +1702,10 @@ int snd_usb_apply_boot_quirk_once(struct usb_device *dev, switch (id) { case USB_ID(0x07fd, 0x0008): /* MOTU M Series, 1st hardware version */ return snd_usb_motu_m_series_boot_quirk(dev); + case USB_ID(0x1397, 0x1230): /* Behringer K-2 Mk II */ case USB_ID(0x1397, 0x1234): /* Behringer CM1A */ + case USB_ID(0x1397, 0x1249): /* Behringer Kobol Expander */ + case USB_ID(0x1397, 0x1256): /* Behringer 2-XM */ return snd_usb_cm1a_boot_quirk(dev); } -- 2.55.0