xiaomi-sm8450/android_kernel_xiaomi_sm8450
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Input: add ps2_drain() to libps2 to allow reading and discarding

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given number of bytes from device. Change ps2_command to
       allow using 0 as command ID and actually pass it to the
       device instead of working as a drain.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov
2005-06-01 02:39:51 -05:00
parent 04df1925fc
commit c611763d04
3 changed files with 40 additions and 10 deletions
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3
drivers/input/mouse/alps.c
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@@ -270,7 +270,6 @@ static struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *vers
static int alps_passthrough_mode(struct psmouse *psmouse, int enable)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[3];
int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11;
if (ps2_command(ps2dev, NULL, cmd) ||
@@ -280,7 +279,7 @@ static int alps_passthrough_mode(struct psmouse *psmouse, int enable)
return -1;
/* we may get 3 more bytes, just ignore them */
ps2_command(ps2dev, param, 0x0300);
ps2_drain(ps2dev, 3, 100);
return 0;
}