7.3.4.6 Audio Widget Capabilities The Audio Capabilities control returns a set of bit fields describing the audio capabilities of the widget.
Parameter ID: 09h Response Format: 23:20 Type 10 Power Cntrl 8 Conn List 0 Channel count Figure 86. Audio Widget Capabilities Response Format Table 138. Widget Type 2h Audio Mixer nid = 0x3e, verb = 0xf00, param = 0x9 value = 0x200500 http://mailman.alsa-project.org/pipermail/alsa- devel/2012-November/056634.html The 0x3e is a stereo to mono mixer, connecting to 0x1c. seem the widget 0x3e is audio mixer Wridget with power control and connection list try to find out the connection list of node 0x3e and widget cap of node 0x3d 7.3.4.11 Connection List Length Returns the length of the connection list for the widget. Parameter ID: 0Eh Response Format: 31:8 7 6:0 Reserved Long Form Connection List Length Figure 92. Connection List Length Response Format Long Form indicates whether the items in the connection list are long form or short form as described in Section 7.1.2. Connection List Length is an integer indicating the number of items in the connection list. If Connection List Length is 1, there is only one hard-wired input possible, which is read from the Connection List, and there is no Connection Select Control (see Section 7.3.3.2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1227148 Title: System76 galu1: Inverted Internal microphone (phase inversion) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1227148/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs