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To: alsa-devel@alsa-project.org Message-ID: Date: Sun, 13 Sep 2020 16:41:56 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Hello Alsa developers, I'm currently enhancing the libalsa API documentation. In the process, I try to understand how each API function works and what the underlying concepts are. The snd_ctl_open() call takes a name, which is a C string (const char*). For my sound card, the names "hw:CARD=PCH" and as well as "hw:2" (2 is the card index) worked. Which strings are acceptable as name? Are there maybe even more formats? Is there some documentation on this? Regards, Tanjeff