I have headphones that appear to have some kind of built-in mic, as well as a volume control and small button that may or may not control said mic. My machine has a headphone jack and a mic jack. When I plug the headphones in to the headphone jack, the mic doesn't work, and pressing the button while speaking into the mic doesn't help. When I plug them in to the mic jack, the headphones don't work.
The onboard audio card I'm using is simple but modern:
$ sudo lshw -c sound *-multimedia description: Audio device product: Juniper HDMI Audio [Radeon HD 5700 Series] vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 0.1 bus info: pci@0000:01:00.1 version: 00 width: 64 bits clock: 33MHz capabilities: pm pciexpress msi bus_master cap_list configuration: driver=snd_hda_intel latency=0 resources: irq:83 memory:fea40000-fea43fff *-multimedia description: Audio device product: SBx00 Azalia (Intel HDA) vendor: Advanced Micro Devices, Inc. [AMD/ATI] physical id: 14.2 bus info: pci@0000:00:14.2 version: 40 width: 64 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: driver=snd_hda_intel latency=32 resources: irq:16 memory:feb00000-feb03fff
PulseAudio is set to use the latter device, which is otherwise 100% working. Any ideas on how I would use the headphones' built-in mic?