Re: [PATCH] HID: multitouch: add support for Win 8.1 multitouch touchpads

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Hey,

I have reverted the old patch 117309.. and forced the class
MT_CLS_EXPORT_ALL_INPUTS on this device. The keyboard and mouse work
in this setup.
When input mode is set to 2 (MT_INPUTMODE_TOUCHSCREEN) hid-recorder outputs:

R: 472 05 01 09 06 a1 01 85 01 15 00 25 01 75 01 95 08 05 07 19 e0 29
e7 81 02 75 08 95 0a 19 00 29 91 26 ff 00 81 00 05 0c 0a c0 02 a1 02
1a c1 02 2a c6 02 95 06 b1 03 c0 05 08 19 01 29 03 75 01 95 03 25 01
91 02 95 05 91 03 c0 05 01 09 02 a1 01 85 02 05 09 19 01 29 05 81 02
95 01 75 03 81 03 15 81 25 7f 75 08 95 02 05 01 09 30 09 31 81 06 a1
02 09 48 15 00 25 01 35 01 45 10 75 02 95 01 a4 b1 02 09 38 15 81 25
7f 35 00 45 00 75 08 81 06 c0 a1 02 09 48 b4 b1 02 35 00 45 00 75 04
b1 03 05 0c 0a 38 02 15 81 25 7f 75 08 81 06 c0 c0 05 0c 09 01 a1 01
85 03 75 10 15 00 26 ff 03 19 00 2a ff 03 81 00 c0 06 05 ff 09 01 a1
01 85 09 25 ff 95 02 75 08 09 20 81 02 09 22 91 02 15 81 25 7f 95 20
75 08 09 21 81 02 09 23 91 02 c0 09 02 a1 01 85 0f 15 00 25 ff 95 01
09 00 91 02 c0 05 0d 09 05 a1 01 85 04 09 22 a1 02 15 00 25 01 09 47
09 42 95 02 75 01 81 03 95 01 75 02 25 02 09 51 81 03 75 01 95 04 81
03 05 01 35 00 65 11 55 0d 75 10 95 01 09 30 26 ff 03 46 5e 1a 81 03
09 31 26 ff 01 46 80 0c 81 03 c0 05 0d 09 56 55 0c 66 01 10 47 ff ff
00 00 27 ff ff 00 00 81 03 09 54 25 7f 75 08 81 03 05 09 09 01 25 01
75 01 81 03 95 07 81 03 05 0d 85 04 09 55 09 59 75 04 95 02 25 0f b1
03 06 00 ff 09 c6 85 05 15 00 25 08 75 08 95 01 b1 02 09 c7 26 ff 00
75 08 95 20 b1 02 c0 05 0d 09 0e a1 01 85 06 09 22 a1 02 09 52 09 52
15 00 25 0a 75 08 95 01 b1 02 c0 85 0b 09 22 a1 00 09 57 09 58 15 00
25 01 75 01 95 02 b1 02 95 06 b1 03 c0 c0
N: MICROSOFT SAM
P: usb-0000:00:14.0-3/input2
I: 3 045e 07a9
E: 0.000001 12 01 00 00 00 00 00 00 00 00 00 00 00
E: 1.044575 6 02 00 f7 00 00 00
E: 1.052450 6 02 00 f7 00 00 00
E: 1.056451 6 02 00 fd 00 00 00
E: 1.064307 6 02 00 f3 00 00 00
E: 1.072314 6 02 00 f3 ff 00 00
E: 1.080422 6 02 00 f2 ff 00 00
E: 1.088323 6 02 00 f6 00 00 00
E: 1.096446 6 02 00 f1 00 00 00
E: 1.104276 6 02 00 f2 01 00 00
E: 1.112225 6 02 00 f3 00 00 00
E: 1.120162 6 02 00 f5 00 00 00
E: 1.128130 6 02 00 f8 01 00 00
E: 1.136120 6 02 00 f9 00 00 00
E: 1.144190 6 02 00 fe 00 00 00
E: 1.148212 6 02 00 fb 01 00 00
E: 1.156311 6 02 00 fc 01 00 00
E: 1.164293 6 02 00 fd 00 00 00
E: 1.172407 6 02 00 fe 00 00 00
E: 1.184526 6 02 00 fe 01 00 00
E: 1.192372 6 02 00 ff 00 00 00


When input is set to 3 hid-recorder output is:

R: 472 05 01 09 06 a1 01 85 01 15 00 25 01 75 01 95 08 05 07 19 e0 29
e7 81 02 75 08 95 0a 19 00 29 91 26 ff 00 81 00 05 0c 0a c0 02 a1 02
1a c1 02 2a c6 02 95 06 b1 03 c0 05 08 19 01 29 03 75 01 95 03 25 01
91 02 95 05 91 03 c0 05 01 09 02 a1 01 85 02 05 09 19 01 29 05 81 02
95 01 75 03 81 03 15 81 25 7f 75 08 95 02 05 01 09 30 09 31 81 06 a1
02 09 48 15 00 25 01 35 01 45 10 75 02 95 01 a4 b1 02 09 38 15 81 25
7f 35 00 45 00 75 08 81 06 c0 a1 02 09 48 b4 b1 02 35 00 45 00 75 04
b1 03 05 0c 0a 38 02 15 81 25 7f 75 08 81 06 c0 c0 05 0c 09 01 a1 01
85 03 75 10 15 00 26 ff 03 19 00 2a ff 03 81 00 c0 06 05 ff 09 01 a1
01 85 09 25 ff 95 02 75 08 09 20 81 02 09 22 91 02 15 81 25 7f 95 20
75 08 09 21 81 02 09 23 91 02 c0 09 02 a1 01 85 0f 15 00 25 ff 95 01
09 00 91 02 c0 05 0d 09 05 a1 01 85 04 09 22 a1 02 15 00 25 01 09 47
09 42 95 02 75 01 81 03 95 01 75 02 25 02 09 51 81 03 75 01 95 04 81
03 05 01 35 00 65 11 55 0d 75 10 95 01 09 30 26 ff 03 46 5e 1a 81 03
09 31 26 ff 01 46 80 0c 81 03 c0 05 0d 09 56 55 0c 66 01 10 47 ff ff
00 00 27 ff ff 00 00 81 03 09 54 25 7f 75 08 81 03 05 09 09 01 25 01
75 01 81 03 95 07 81 03 05 0d 85 04 09 55 09 59 75 04 95 02 25 0f b1
03 06 00 ff 09 c6 85 05 15 00 25 08 75 08 95 01 b1 02 09 c7 26 ff 00
75 08 95 20 b1 02 c0 05 0d 09 0e a1 01 85 06 09 22 a1 02 09 52 09 52
15 00 25 0a 75 08 95 01 b1 02 c0 85 0b 09 22 a1 00 09 57 09 58 15 00
25 01 75 01 95 02 b1 02 95 06 b1 03 c0 c0
N: MICROSOFT SAM
P: usb-0000:00:14.0-3/input2
I: 3 045e 07a9

One Finger - side to side swipes

E: 0.000000 10 04 03 1f 02 ed 00 c4 e2 01 00
E: 0.020089 10 04 03 1f 02 ed 00 0a e3 01 00
E: 0.023972 10 04 03 1f 02 ed 00 50 e3 01 00
E: 0.027967 10 04 03 1f 02 ed 00 96 e3 01 00
E: 0.031878 10 04 03 1f 02 ed 00 dc e3 01 00
E: 0.035809 10 04 03 14 02 eb 00 f0 e3 01 00
E: 0.039936 10 04 03 10 02 eb 00 36 e4 01 00
E: 0.043969 10 04 03 0f 02 ea 00 40 e4 01 00
E: 0.047682 10 04 03 04 02 e9 00 86 e4 01 00
E: 0.055592 10 04 03 fb 01 e8 00 cc e4 01 00
E: 0.059593 10 04 03 f9 01 e7 00 d6 e4 01 00
E: 0.063589 10 04 03 f1 01 e5 00 1c e5 01 00
E: 0.067561 10 04 03 ee 01 e4 00 30 e5 01 00
E: 0.071724 10 04 03 eb 01 e4 00 6c e5 01 00
E: 0.075660 10 04 03 e0 01 e3 00 a8 e5 01 00
E: 0.079566 10 04 03 d2 01 e1 00 ee e5 01 00
E: 0.091504 10 04 03 c7 01 df 00 34 e6 01 00
E: 0.095476 10 04 03 c5 01 de 00 3e e6 01 00
E: 0.099484 10 04 03 ba 01 dc 00 84 e6 01 00
E: 0.107550 10 04 03 ac 01 db 00 ca e6 01 00
E: 0.111504 10 04 03 aa 01 da 00 d4 e6 01 00
E: 0.115485 10 04 03 9f 01 d9 00 1a e7 01 00
E: 0.119496 10 04 03 9d 01 d8 00 24 e7 01 00
E: 0.123471 10 04 03 8f 01 d7 00 6a e7 01 00
E: 0.127468 10 04 03 8d 01 d6 00 74 e7 01 00
E: 0.131469 10 04 03 7f 01 d5 00 ba e7 01 00
E: 0.135467 10 04 03 76 01 d4 00 e2 e7 01 00
E: 0.143466 10 04 03 62 01 d3 00 28 e8 01 00
E: 0.147468 10 04 03 5f 01 d2 00 32 e8 01 00
E: 0.151467 10 04 03 51 01 d2 00 78 e8 01 00
E: 0.155467 10 04 03 4f 01 d1 00 82 e8 01 00
E: 0.159467 10 04 03 48 01 d1 00 c8 e8 01 00
E: 0.163467 10 04 03 36 01 d0 00 04 e9 01 00
E: 0.167467 10 04 03 28 01 cf 00 4a e9 01 00
E: 0.179468 10 04 03 1e 01 cf 00 90 e9 01 00
E: 0.183466 10 04 03 1c 01 cf 00 9a e9 01 00
E: 0.187468 10 04 03 14 01 ce 00 e0 e9 01 00
E: 0.191467 10 04 03 0c 01 ce 00 26 ea 01 00
E: 0.195467 10 04 03 0a 01 cf 00 30 ea 01 00
E: 0.199467 10 04 03 04 01 cf 00 76 ea 01 00
E: 0.203467 10 04 03 02 01 cf 00 8a ea 01 00
E: 0.211466 10 04 03 fd 00 cf 00 d0 ea 01 00
E: 0.215467 10 04 03 fc 00 cf 00 da ea 01 00
E: 0.219467 10 04 03 f8 00 cf 00 20 eb 01 00
E: 0.223470 10 04 03 f6 00 ce 00 3e eb 01 00
E: 0.227468 10 04 03 f1 00 ce 00 84 eb 01 00
E: 0.231467 10 04 03 f0 00 ce 00 8e eb 01 00
E: 0.235467 10 04 03 ed 00 ce 00 d4 eb 01 00
E: 0.239466 10 04 03 ec 00 ce 00 de eb 01 00
E: 0.243467 10 04 03 ea 00 ce 00 24 ec 01 00
E: 0.251464 10 04 03 e9 00 ce 00 6a ec 01 00
E: 0.255466 10 04 03 e8 00 ce 00 74 ec 01 00
E: 0.259467 10 04 03 e6 00 ce 00 ba ec 01 00
E: 0.263467 10 04 03 e5 00 ce 00 c4 ec 01 00
E: 0.267467 10 04 03 e5 00 ce 00 0a ed 01 00
E: 0.271479 10 04 03 e4 00 ce 00 3c ed 01 00
E: 1.167556 10 04 01 79 01 b6 00 64 10 01 00

Two Fingers

E: 3.404049 10 04 03 85 03 fc 00 e4 67 01 00
E: 3.428076 10 04 03 85 03 fc 00 2a 68 01 00
E: 3.431899 10 04 03 85 03 fc 00 70 68 01 00
E: 3.435812 10 04 03 85 03 fc 00 a2 68 02 00
E: 3.439773 10 04 07 98 01 af 00 a2 68 00 00
E: 3.447819 10 04 03 85 03 fc 00 f2 68 02 00
E: 3.451729 10 04 07 99 01 b0 00 f2 68 00 00
E: 3.455721 10 04 03 85 03 fc 00 42 69 02 00
E: 3.459697 10 04 07 99 01 b0 00 42 69 00 00
E: 3.463677 10 04 03 85 03 fc 00 92 69 02 00
E: 3.467672 10 04 07 99 01 b0 00 92 69 00 00
E: 3.471641 10 04 03 85 03 fc 00 e2 69 02 00
E: 3.475641 10 04 07 99 01 b0 00 e2 69 00 00
E: 3.479649 10 04 03 85 03 fc 00 32 6a 02 00
E: 3.483616 10 04 07 99 01 b0 00 32 6a 00 00
E: 3.487614 10 04 03 85 03 fc 00 82 6a 02 00
E: 3.491461 10 04 07 99 01 b0 00 82 6a 00 00
E: 3.495460 10 04 03 85 03 fc 00 d2 6a 02 00
E: 3.499461 10 04 07 99 01 b0 00 d2 6a 00 00
E: 3.503460 10 04 03 85 03 fc 00 22 6b 02 00
E: 3.507461 10 04 07 99 01 b0 00 22 6b 00 00
E: 3.511458 10 04 03 85 03 fc 00 72 6b 02 00
E: 3.515460 10 04 07 99 01 b0 00 72 6b 00 00
E: 3.519460 10 04 03 85 03 fc 00 c2 6b 02 00
E: 3.523460 10 04 07 99 01 b0 00 c2 6b 00 00
E: 3.527460 10 04 03 85 03 fc 00 12 6c 02 00
E: 3.531466 10 04 07 99 01 b0 00 12 6c 00 00
E: 3.535459 10 04 03 85 03 fc 00 62 6c 02 00
E: 3.539460 10 04 07 99 01 b0 00 62 6c 00 00
E: 3.543460 10 04 03 85 03 fc 00 b2 6c 02 00
E: 3.547461 10 04 07 99 01 b0 00 b2 6c 00 00
E: 3.551460 10 04 03 85 03 fc 00 02 6d 02 00
E: 3.555460 10 04 07 99 01 b0 00 02 6d 00 00
E: 3.559460 10 04 03 85 03 fc 00 52 6d 02 00
E: 3.563460 10 04 07 99 01 b0 00 52 6d 00 00
E: 3.567459 10 04 03 85 03 fc 00 a2 6d 02 00
E: 3.571460 10 04 07 99 01 b0 00 a2 6d 00 00
E: 3.575460 10 04 03 85 03 fc 00 f2 6d 02 00
E: 3.579460 10 04 07 99 01 b0 00 f2 6d 00 00
E: 3.583460 10 04 03 85 03 fc 00 42 6e 02 00
E: 3.587460 10 04 07 99 01 b0 00 42 6e 00 00
E: 3.591459 10 04 03 85 03 fc 00 92 6e 02 00
E: 3.595460 10 04 07 99 01 b0 00 92 6e 00 00
E: 3.599459 10 04 03 85 03 fc 00 e2 6e 02 00
E: 3.603460 10 04 07 99 01 b0 00 e2 6e 00 00
E: 3.607459 10 04 03 85 03 fc 00 32 6f 02 00
E: 3.611460 10 04 07 99 01 b0 00 32 6f 00 00
E: 3.615459 10 04 03 85 03 fc 00 82 6f 02 00
E: 3.619460 10 04 07 8d 01 b2 00 82 6f 00 00
E: 3.623460 10 04 03 7b 03 02 01 d2 6f 02 00
E: 3.627476 10 04 07 84 01 b2 00 d2 6f 00 00
E: 3.631423 10 04 03 6c 03 02 01 22 70 02 00
E: 3.635495 10 04 07 73 01 b3 00 22 70 00 00
E: 3.639475 10 04 03 5a 03 01 01 68 70 02 00
E: 3.643479 10 04 07 67 01 b4 00 68 70 00 00
E: 3.647369 10 04 03 4d 03 01 01 ae 70 02 00
E: 3.651602 10 04 07 52 01 b5 00 ae 70 00 00
E: 3.655649 10 04 03 4c 03 01 01 fe 70 02 00
E: 3.659657 10 04 07 51 01 b6 00 fe 70 00 00
E: 3.663650 10 04 03 34 03 01 01 08 71 02 00
E: 3.667663 10 04 07 43 01 b6 00 08 71 00 00
E: 3.671650 10 04 03 25 03 02 01 4e 71 02 00
E: 3.675577 10 04 07 32 01 b7 00 4e 71 00 00
E: 3.679686 10 04 03 1a 03 02 01 94 71 02 00
E: 3.684002 10 04 07 29 01 b8 00 94 71 00 00
E: 3.687960 10 04 03 0b 03 03 01 da 71 02 00
E: 5.011753 10 04 05 b9 00 ea 00 e8 9a 00 00

Three Fingers - I can't imagine someone using more on this size of touchpad

E: 8.512034 10 04 03 01 01 30 01 44 2f 01 00
E: 8.531887 10 04 03 01 01 30 01 8a 2f 01 00
E: 8.535992 10 04 03 01 01 30 01 d0 2f 01 00
E: 8.539861 10 04 03 01 01 30 01 16 30 01 00
E: 8.543796 10 04 03 01 01 30 01 5c 30 01 00
E: 8.547750 10 04 03 01 01 30 01 a2 30 01 00
E: 8.551763 10 04 03 01 01 30 01 e8 30 01 00
E: 8.559774 10 04 03 01 01 30 01 2e 31 01 00
E: 8.563713 10 04 03 01 01 30 01 74 31 01 00
E: 8.571685 10 04 03 fa 00 2c 01 c4 31 01 00
E: 8.579631 10 04 03 f9 00 2b 01 14 32 01 00
E: 8.595606 10 04 03 f9 00 2b 01 5a 32 01 00
E: 8.599448 10 04 03 f9 00 2b 01 6e 32 02 00
E: 8.603459 10 04 07 8a 03 36 01 6e 32 00 00
E: 8.607448 10 04 03 f9 00 2b 01 be 32 02 00
E: 8.611449 10 04 07 8b 03 37 01 be 32 00 00
E: 8.615447 10 04 03 f9 00 2b 01 c8 32 03 00
E: 8.619449 10 04 07 8a 03 36 01 c8 32 00 00
E: 8.623450 10 04 0b 29 02 ab 00 c8 32 00 00
E: 8.627449 10 04 03 f8 00 2b 01 0e 33 03 00
E: 8.631448 10 04 07 8a 03 36 01 0e 33 00 00
E: 8.635448 10 04 0b 29 02 ab 00 0e 33 00 00
E: 8.639448 10 04 03 f7 00 2b 01 5e 33 03 00
E: 8.643448 10 04 07 8a 03 36 01 5e 33 00 00
E: 8.647448 10 04 0b 29 02 ab 00 5e 33 00 00
E: 8.651448 10 04 03 f8 00 2a 01 86 33 03 00
E: 8.655448 10 04 07 8a 03 36 01 86 33 00 00
E: 8.659448 10 04 0b 29 02 ab 00 86 33 00 00
E: 8.663447 10 04 03 f7 00 2a 01 cc 33 03 00
E: 8.667449 10 04 07 8a 03 36 01 cc 33 00 00
E: 8.671448 10 04 0b 29 02 ab 00 cc 33 00 00
E: 8.675447 10 04 03 f6 00 2a 01 1c 34 03 00
E: 8.679448 10 04 07 8a 03 36 01 1c 34 00 00
E: 8.683448 10 04 0b 29 02 ab 00 1c 34 00 00
E: 8.687447 10 04 03 f6 00 2a 01 62 34 03 00
E: 8.691448 10 04 07 8a 03 36 01 62 34 00 00
E: 8.695469 10 04 0b 29 02 ab 00 62 34 00 00
E: 8.699449 10 04 03 f6 00 2a 01 b2 34 03 00
E: 8.703447 10 04 07 8a 03 36 01 b2 34 00 00
E: 8.707446 10 04 0b 29 02 ab 00 b2 34 00 00
E: 8.711447 10 04 03 f5 00 2a 01 f8 34 03 00
E: 8.715448 10 04 07 8a 03 36 01 f8 34 00 00
E: 8.719447 10 04 0b 29 02 ab 00 f8 34 00 00
E: 8.723448 10 04 03 f5 00 2a 01 48 35 03 00
E: 8.727446 10 04 07 82 03 36 01 48 35 00 00
E: 9.867933 10 04 05 36 03 1f 01 86 5b 00 00

Tested keyboard - worked as expected

E: 12.139656 12 01 00 14 00 00 00 00 00 00 00 00 00
qE: 12.251482 12 01 00 00 00 00 00 00 00 00 00 00 00
E: 12.579961 12 01 00 1a 00 00 00 00 00 00 00 00 00
wE: 12.691797 12 01 00 00 00 00 00 00 00 00 00 00 00
E: 13.027924 12 01 00 08 00 00 00 00 00 00 00 00 00
eE: 13.159919 12 01 00 00 00 00 00 00 00 00 00 00 00
E: 13.479970 12 01 00 15 00 00 00 00 00 00 00 00 00
rE: 13.579955 12 01 00 00 00 00 00 00 00 00 00 00 00
E: 14.007968 12 01 00 17 00 00 00 00 00 00 00 00 00
tE: 14.107946 12 01 00 00 00 00 00 00 00 00 00 00 00
E: 14.471932 12 01 00 1c 00 00 00 00 00 00 00 00 00
yE: 14.571838 12 01 00 00 00 00 00 00 00 00 00 00 00

Hope this is everything you needed. If there is any other test you
need performed just let me know. One more thing I should note is that
I did not see a cursor when input mode is set to three.

On Sat, Mar 29, 2014 at 11:07 PM, Benjamin Tissoires
<benjamin.tissoires@xxxxxxxxx> wrote:
> Hi Reyad,
>
> Thanks for the tests. I was surprised to hear that this patch did not
> work for you. I made some tests too and the touchpad collection does
> not appear right now.
> This was until I realized that the report descriptor I have regarding
> the Surface 2 was completely buggy.
> So it seems that either I have a bad one, or the one actually inside
> the device is buggy (which would explain why you don't get any
> output).
>
> The report descriptor declares all the events regarding the touchpad
> as constant, and the hid subsystem ignores them :)
>
> To be able to provide a good solution, I would like you to conduct
> some more tests:
>
> - revert commit 117309c51dca42121f70cacec801511b76acf75c (yours
> actually :-P ) to handle the touch cover through hid-multitouch (you
> should have done it already I think).
> - register the touchcover surface 2 as using the class
> MT_CLS_EXPORT_ALL_INPUTS (optional step, but you should be able to
> have a keyboard with this)
> - change mt_set_input_mode() in hid-multitouch.c to actually use "3"
> as the td->inputmode_value (just overwite the value before putting it
> in the field)
> - please download and install hid-replay [1]
>
> run hid-recorder with (and without to check) the 3 as input mode, you
> should receive events starting with "E: xxxxx..xxx XX 04 ....." when
> playing with the touchpad.
> (without the 3 as inputmode_value, you should receive  "E: xxxxx..xxx
> XX 02 .....")
>
> Then, send me the recording from hid-recorder of a few keyboard
> touches + touchpad events (single touch, dual touch, and more fingers)
> so I can test and explain you how to fix the report descriptor in the
> kernel.
>
>
> Cheers,
> Benjamin
>
>
> On Sat, Mar 29, 2014 at 9:23 PM, Reyad Attiyat <reyad.attiyat@xxxxxxxxx> wrote:
>> Hey Benjamin,
>>
>> I was the one to submit the original Surface 2 patch. I have been
>> testing the 3.15/multitouch branch with the Surface Pro 2 type cover.
>> This patch doesn't actual enable the keyboard/mouse to work. This
>> patch only works when there is a HID_UP_BUTTON and/or HID_DG_TOUCHPAD
>> in usage, which is not the case on this device. The reason the type
>> cover is not working with hid-multitouch is mt_input_mapping is
>> returing -1 to ignore the device. This happens becuase of:
>>
>> if (!td->mtclass.export_all_inputs &&
>>    field->application != HID_DG_TOUCHSCREEN &&
>>    field->application != HID_DG_PEN &&
>>    field->application != HID_DG_TOUCHPAD)
>> return -1;
>>
>>
>> I notice that there is now a mt.export_all_inputs which could allow
>> the surface type cover keyboard to get handled properly. Is this
>> something that sould be added to hid-multitouch for this device? The
>> driver could check for device ID's and set export_all_inputs to true.
>> It could also check for GenericDesktop application in hid field and
>> return 0 in mt_input_mapping.
>>
>> I can submit a patch with one of these changes if you think it would
>> be better than the current patch for the surface from Derya. I belive
>> that patch adds hardware ID's to hid core and sets the HID Group to
>> generic.
>>
>> On Thu, Mar 20, 2014 at 12:36 PM, Benjamin Tissoires
>> <benjamin.tissoires@xxxxxxxxx> wrote:
>>> On Thu, Mar 20, 2014 at 5:02 AM, Jiri Kosina <jkosina@xxxxxxx> wrote:
>>>> On Wed, 19 Mar 2014, Andrew Duggan wrote:
>>>>
>>>>> Multitouch touchpads built for Win 8.1 need to be sent an input mode feature report
>>>>> in order to start reporting multitouch events. This is the same process sent
>>>>> to Win 7 multitouch touchscreens except the value of the feature report is 3 for
>>>>> touchpads.
>>>>>
>>>>> Signed-off-by: Andrew Duggan <aduggan@xxxxxxxxxxxxx>
>>>>> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
>>>>
>>>> Applied, thanks.
>>>
>>> Thanks Jiri.
>>>
>>> Derya, can you test if this also solves the problem with the Surface 2
>>> touch cover?
>>> (if you remove the special vendor handling in hid_scan_report)
>>>
>>> Cheers,
>>> Benjamin
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