alsa_in(1) on Linux
The text 829fca31f806, as Debian 12 (Bookworm) shipped it.
Jack clients that perform I/O with an alternate audio interface
Flags it lists
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-S -
-c -
-d -
-i -
-j -
-m -
-n -
-p -
-q -
-r -
-s -
-t -
-v