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Mon, 14 Sep 2026 15:53:13 +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 oKQtD2kYqGpYBgAAD6G6ig (envelope-from ); Mon, 14 Sep 2026 15:53:13 +0000 Date: Mon, 14 Sep 2026 17:53:12 +0200 Message-ID: <87ecevommv.wl-tiwai@suse.de> From: Takashi Iwai To: Asai Neko Cc: Jaroslav Kysela , Takashi Iwai , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev Subject: Re: [PATCH] ALSA: usb-audio: skip the broken mute control on AVerMedia GC553Pro In-Reply-To: <20260914-avermedia-gc553pro-alsa-v1-1-4c694e8b0cd5@sne.moe> References: <20260914-avermedia-gc553pro-alsa-v1-1-4c694e8b0cd5@sne.moe> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/30.2 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=US-ASCII X-Spam-Level: X-Rspamd-Action: no action X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Queue-Id: AC81B1FF45 X-Spamd-Result: default: False [-3.51 / 50.00]; BAYES_HAM(-3.00)[99.99%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; 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)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; RCVD_TLS_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; TO_DN_SOME(0.00)[]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; DNSWL_BLOCKED(0.00)[2a07:de40:b281:106:10:150:64:167:received]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_SEVEN(0.00)[10]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim,suse.de:mid,imap1.dmz-prg2.suse.org:rdns,imap1.dmz-prg2.suse.org:helo]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; DKIM_TRACE(0.00)[suse.de:+] X-Spam-Flag: NO X-Spam-Score: -3.51 On Mon, 14 Sep 2026 12:58:29 +0200, Asai Neko wrote: > > Skip the nonfunctional master mute control on the AVerMedia Live Gamer > ULTRA S GC553Pro (07ca:1553). > > USB tracing shows that GET_CUR returns zero bytes instead of the required > one-byte value, both through usbfs and during ALSA initialization. > SET_CUR succeeds, but switching capture off does not mute HDMI audio. > > Before the change, the driver exposed a misleading PCM Capture Switch > and logged: 3:2: failed to get current value for ch 0 (-22) > > With the patch applied, the switch and warning are absent. A ten-second > sound recording through PipeWire confirmed that stereo 48 kHz, 16-bit > capture still works. > > Tested on NixOS with the patched 7.3.0-rc3 kernel. The USB audio driver > object builds with Clang and W=1; sparse and strict checkpatch pass. > > Signed-off-by: Asai Neko Applied now. Thanks. Takashi