[Bug 222646] ukbd(4): support Consumer Control based multimedia keys

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222646

--- Comment #14 from Henry Hu <henry.hu.sh at gmail.com> ---
(In reply to Vladimir Kondratyev from comment #12)
Hans, yes, every key press there seem to be 2 reports:

19:36:22.021230 usbus0.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=10
 frame[0] READ 8 bytes
19:36:22.021231 usbus0.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=8,IVAL=10,ERR=0
 frame[0] READ 8 bytes
 0000  00 00 00 00 00 00 00 00  -- -- -- -- -- -- -- --  |........        |
19:36:22.021353 usbus0.2
DONE-INTR-EP=00000082,SPD=LOW,NFR=1,SLEN=8,IVAL=10,ERR=0
 frame[0] READ 7 bytes
 0000  01 08 00 00 00 00 00 --  -- -- -- -- -- -- -- --  |.......         |
19:36:22.021356 usbus0.2 SUBM-INTR-EP=00000082,SPD=LOW,NFR=1,SLEN=0,IVAL=10
 frame[0] READ 8 bytes

19:36:22.101224 usbus0.2 SUBM-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=0,IVAL=10
 frame[0] READ 8 bytes
19:36:22.101225 usbus0.2
DONE-INTR-EP=00000081,SPD=LOW,NFR=1,SLEN=8,IVAL=10,ERR=0
 frame[0] READ 8 bytes
 0000  00 00 00 00 00 00 00 00  -- -- -- -- -- -- -- --  |........        |
19:36:22.101348 usbus0.2
DONE-INTR-EP=00000082,SPD=LOW,NFR=1,SLEN=8,IVAL=10,ERR=0
 frame[0] READ 7 bytes
 0000  01 00 00 00 00 00 00 --  -- -- -- -- -- -- -- --  |.......         |
19:36:22.101349 usbus0.2 SUBM-INTR-EP=00000082,SPD=LOW,NFR=1,SLEN=0,IVAL=10
 frame[0] READ 8 bytes

Vladimir: There is another device, which is attached by ums driver, but
interestingly no button/axis is reported.

Greg: I may try iichid as well.

Let's open another PR to track this.

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