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Input: synaptics - document 0x0c query

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Since Synaptics technical writers department is a bit slow releasing updated
Synaptics interface guide, let's add some new bits (with their blessing)
to the code so that they don't get lost.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2011-02-22 20:15:07 -08:00
parent 4e8b65f606
commit 9bb794ae05
1 changed files with 23 additions and 0 deletions
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23
drivers/input/mouse/synaptics.h
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@ -51,6 +51,29 @@
#define SYN_EXT_CAP_REQUESTS(c) (((c) & 0x700000) >> 20)
#define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & 0x00f000) >> 12)
#define SYN_CAP_PRODUCT_ID(ec) (((ec) & 0xff0000) >> 16)
/*
* The following describes response for the 0x0c query.
*
* byte mask name meaning
* ---- ---- ------- ------------
* 1 0x01 adjustable threshold capacitive button sensitivity
* can be adjusted
* 1 0x02 report max query 0x0d gives max coord reported
* 1 0x04 clearpad sensor is ClearPad product
* 1 0x08 advanced gesture not particularly meaningful
* 1 0x10 clickpad bit 0 1-button ClickPad
* 1 0x60 multifinger mode identifies firmware finger counting
* (not reporting!) algorithm.
* Not particularly meaningful
* 1 0x80 covered pad W clipped to 14, 15 == pad mostly covered
* 2 0x01 clickpad bit 1 2-button ClickPad
* 2 0x02 deluxe LED controls touchpad support LED commands
* ala multimedia control bar
* 2 0x04 reduced filtering firmware does less filtering on
* position data, driver should watch
* for noise.
*/
#define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & 0x100000) /* 1-button ClickPad */
#define SYN_CAP_CLICKPAD2BTN(ex0c) ((ex0c) & 0x000100) /* 2-button ClickPad */
#define SYN_CAP_MAX_DIMENSIONS(ex0c) ((ex0c) & 0x020000)