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Wed, 15 Jan 2025 08:41:53 +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 J1HeINF0h2cXCgAAD6G6ig (envelope-from ); Wed, 15 Jan 2025 08:41:53 +0000 Date: Wed, 15 Jan 2025 09:41:53 +0100 Message-ID: <875xmglb8u.wl-tiwai@suse.de> From: Takashi Iwai To: =?GB2312?B?uvrBrMfa?= Cc: Takashi Iwai , "perex@perex.cz" , "tiwai@suse.com" , "lina@asahilina.net" , "mbarriolinares@gmail.com" , "wangdicheng@kylinos.cn" , "cyan.vtb@gmail.com" , "dan.carpenter@linaro.org" , "bsevens@google.com" , "linux-sound@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: =?GB2312?B?tPC4tDo=?= [PATCH] ALSA: usb-audio: Add delay quirk for USB Audio Device In-Reply-To: References: <878qrcld30.wl-tiwai@suse.de> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.2 Mule/6.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 8bit X-Spam-Score: -1.80 X-Spamd-Result: default: False [-1.80 / 50.00]; BAYES_HAM(-3.00)[99.99%]; SUSPICIOUS_RECIPS(1.50)[]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; TAGGED_RCPT(0.00)[]; TO_DN_EQ_ADDR_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[suse.de,perex.cz,suse.com,asahilina.net,gmail.com,kylinos.cn,linaro.org,google.com,vger.kernel.org]; RCPT_COUNT_TWELVE(0.00)[12]; FROM_EQ_ENVFROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; TO_DN_SOME(0.00)[] X-Spam-Flag: NO X-Spam-Level: On Wed, 15 Jan 2025 09:30:14 +0100, ºúÁ¬ÇÚ wrote: > > Hello linux kernel expert: > > > On Wed, 15 Jan 2025 07:45:33 +0100, > > ºúÁ¬ÇÚ wrote: > > > > > > From: Lianqin Hu > > > > > > Audio control requests that sets sampling frequency sometimes fail on > > > this card. Adding delay between control messages eliminates that problem. > > > > > > Signed-off-by: Lianqin Hu > > > > Could you give a bit more specific name / model to both the subject and the > > quirk comment? Then it'd be more helpful for people who read / check the > > changes later. > > We used this sound card to connect to the phone, and only saw the following information in the log, without specific sound card model information: > > usb 1-1: New USB device found, idVendor=0d8c, idProduct=0014, bcdDevice= 1.00 > usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > usb 1-1: Product: USB Audio Device > usb 1-1: Manufacturer: C-Media Electronics Inc. > usb 1-1: usb_probe_device > > We currently do not have an effective way to obtain the detailed model of this sound card. We are very sorry. Well, you can put such info in the patch description. It's already helpful to know whether it's an an unknown / unnamed product. thanks, Takashi