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| author | David S. Miller <davem@davemloft.net> | 2012-03-09 14:34:20 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-09 14:34:20 -0800 |
| commit | b2d3298e0916fa059712691c85a0e97becc4ab9f (patch) | |
| tree | c7d5ea46a9dbf9cebdb122df4aaf0beda6e7621e /drivers/input/mouse/alps.c | |
| parent | 1a0bdadb4e36abac63b0a9787f372aac30c11a9e (diff) | |
| parent | a7f4255f906f60f72e00aad2fb000939449ff32e (diff) | |
| download | lwn-b2d3298e0916fa059712691c85a0e97becc4ab9f.tar.gz lwn-b2d3298e0916fa059712691c85a0e97becc4ab9f.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/input/mouse/alps.c')
| -rw-r--r-- | drivers/input/mouse/alps.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index bd87380bd879..4c6a72d3d48c 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -952,7 +952,9 @@ static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int /* * First try "E6 report". - * ALPS should return 0,0,10 or 0,0,100 + * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. + * The bits 0-2 of the first byte will be 1s if some buttons are + * pressed. */ param[0] = 0; if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || @@ -968,7 +970,8 @@ static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int psmouse_dbg(psmouse, "E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); - if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100)) + if ((param[0] & 0xf8) != 0 || param[1] != 0 || + (param[2] != 10 && param[2] != 100)) return NULL; /* |