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SubjectRe: [PATCH 1/2] Synaptics rate switching
On Sat, Jan 10, 2004 at 03:45:13AM -0500, Dmitry Torokhov wrote:

> ===================================================================
>
>
> ChangeSet@1.1512, 2004-01-10 02:42:42-05:00, dtor_core@ameritech.net
> Input: Allow switching between high and low reporting rate for Synaptics
> touchpads in native mode. Synaptics support 2 report rates - 40
> and 80 packets/sec; report rate must be set using Synaptics mode
> set command. Rate is controlled by psmouse.rate parameter, values
> greater or equal 80 will set 'high' rate. (psmouse.rate defaults
> to 100)
>
> Using low report rate should help slower systems or systems
> spending too much time in SCI (ACPI).
>
>
> psmouse.h | 1 +
> synaptics.c | 4 +++-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
>
> ===================================================================

Andrew, please apply these patches.

> diff -Nru a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
> --- a/drivers/input/mouse/psmouse.h Sat Jan 10 03:22:26 2004
> +++ b/drivers/input/mouse/psmouse.h Sat Jan 10 03:22:26 2004
> @@ -67,6 +67,7 @@
> int psmouse_command(struct psmouse *psmouse, unsigned char *param, int command);
>
> extern int psmouse_smartscroll;
> +extern unsigned int psmouse_rate;
> extern unsigned int psmouse_resetafter;
>
> #endif /* _PSMOUSE_H */
> diff -Nru a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
> --- a/drivers/input/mouse/synaptics.c Sat Jan 10 03:22:26 2004
> +++ b/drivers/input/mouse/synaptics.c Sat Jan 10 03:22:26 2004
> @@ -214,7 +214,9 @@
> {
> struct synaptics_data *priv = psmouse->private;
>
> - mode |= SYN_BIT_ABSOLUTE_MODE | SYN_BIT_HIGH_RATE;
> + mode |= SYN_BIT_ABSOLUTE_MODE;
> + if (psmouse_rate >= 80)
> + mode |= SYN_BIT_HIGH_RATE;
> if (SYN_ID_MAJOR(priv->identity) >= 4)
> mode |= SYN_BIT_DISABLE_GESTURE;
> if (SYN_CAP_EXTENDED(priv->capabilities))

--
Vojtech Pavlik
SuSE Labs, SuSE CR
-
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