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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-04-06 20:23:39 -0400 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-04-17 23:19:12 -0400 |
commit | 6c6d5752da5c9594e527e81062180bcf814ef1a0 (patch) | |
tree | 2ea40c7932d766fc5c4fdb5b2d080b620e094171 /Documentation/input/multi-touch-protocol.rst | |
parent | 4c79e98be5a9c0bf8fce183cfbe63624514502ef (diff) |
Input: docs - note that MT-A protocol is obsolete
Everyone should be using multitouch protocol B (slotted) now.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/input/multi-touch-protocol.rst')
-rw-r--r-- | Documentation/input/multi-touch-protocol.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/input/multi-touch-protocol.rst b/Documentation/input/multi-touch-protocol.rst index 81775d7c1997..8035868c56bc 100644 --- a/Documentation/input/multi-touch-protocol.rst +++ b/Documentation/input/multi-touch-protocol.rst | |||
@@ -22,6 +22,9 @@ describes how to send the raw data for all contacts to the receiver. For | |||
22 | devices capable of tracking identifiable contacts (type B), the protocol | 22 | devices capable of tracking identifiable contacts (type B), the protocol |
23 | describes how to send updates for individual contacts via event slots. | 23 | describes how to send updates for individual contacts via event slots. |
24 | 24 | ||
25 | .. note:: | ||
26 | MT potocol type A is obsolete, all kernel drivers have been | ||
27 | converted to use type B. | ||
25 | 28 | ||
26 | Protocol Usage | 29 | Protocol Usage |
27 | -------------- | 30 | -------------- |
@@ -400,9 +403,6 @@ in a finger packet must not be recognized as single-touch events. | |||
400 | For type A devices, all finger data bypasses input filtering, since | 403 | For type A devices, all finger data bypasses input filtering, since |
401 | subsequent events of the same type refer to different fingers. | 404 | subsequent events of the same type refer to different fingers. |
402 | 405 | ||
403 | For example usage of the type A protocol, see the bcm5974 driver. For | ||
404 | example usage of the type B protocol, see the hid-egalax driver. | ||
405 | |||
406 | .. [#f1] Also, the difference (TOOL_X - POSITION_X) can be used to model tilt. | 406 | .. [#f1] Also, the difference (TOOL_X - POSITION_X) can be used to model tilt. |
407 | .. [#f2] The list can of course be extended. | 407 | .. [#f2] The list can of course be extended. |
408 | .. [#f3] The mtdev project: http://bitmath.org/code/mtdev/. | 408 | .. [#f3] The mtdev project: http://bitmath.org/code/mtdev/. |