Op 11-05-10 10:18, Dmitry Torokhov schreef:
For the first time, the touchpad is detected out of the box on my Dell
mini 10... so sweet ;-)
> Signed-off-by: Dmitry Torokhov <dtor@xxxxxxx>
Tested-by: Eric Piel <eric.piel@xxxxxxxxxxxxxxxx>
> ---
>
> drivers/input/mouse/elantech.c | 20 +++++++++++++++++++-
> 1 files changed, 19 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
> index 232556a..b18862b 100644
> --- a/drivers/input/mouse/elantech.c
> +++ b/drivers/input/mouse/elantech.c
> @@ -575,6 +575,24 @@ static struct attribute_group elantech_attr_group = {
> .attrs = elantech_attrs,
> };
>
> +static bool elantech_is_signature_valid(const unsigned char *param)
> +{
> + static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10 };
> + int i;
> +
> + if (param[0] == 0)
> + return false;
> +
> + if (param[1] == 0)
> + return true;
> +
> + for (i = 0; i < ARRAY_SIZE(rates); i++)
> + if (param[2] == rates[i])
> + return false;
> +
> + return true;
> +}
> +
> /*
> * Use magic knock to detect Elantech touchpad
> */
> @@ -617,7 +635,7 @@ int elantech_detect(struct psmouse *psmouse, bool set_properties)
> pr_debug("Elantech version query result 0x%02x, 0x%02x, 0x%02x.\n",
> param[0], param[1], param[2]);
>
> - if (param[0] == 0 || param[1] != 0) {
> + if (!elantech_is_signature_valid(param)) {
> if (!force_elantech) {
> pr_debug("Probably not a real Elantech touchpad. Aborting.\n");
> return -1;
>
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