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authorArnd Bergmann <arnd@arndb.de>2012-03-15 16:19:05 +0100
committerArnd Bergmann <arnd@arndb.de>2012-03-15 16:20:07 +0100
commitf4e2467bad53023589cbff18dd1ab6e0aa3f004c (patch)
tree8d7abbf418eabd25bbcdc9b6de2f8216d2eaa616 /drivers/input/mouse/alps.c
parentMerge branch 'next/cleanup-exynos-clock' of git://git.kernel.org/pub/scm/linu... (diff)
parentep93xx: Remove unnecessary includes of ep93xx-regs.h (diff)
downloadlinux-f4e2467bad53023589cbff18dd1ab6e0aa3f004c.tar.xz
linux-f4e2467bad53023589cbff18dd1ab6e0aa3f004c.zip
Merge branch 'ep93xx-for-arm-soc' of git://github.com/RyanMallon/linux-2.6 into next/cleanup
* 'ep93xx-for-arm-soc' of git://github.com/RyanMallon/linux-2.6: ep93xx: Remove unnecessary includes of ep93xx-regs.h ep93xx: Move EP93XX_SYSCON defines to SoC private header ep93xx: Move crunch code to mach-ep93xx directory ep93xx: Make syscon access functions private to SoC ep93xx: Configure GPIO ports in core code ep93xx: Move peripheral defines to local SoC header ep93xx: Convert the watchdog driver into a platform device. ep93xx: Use ioremap for backlight driver ep93xx: Move GPIO defines to gpio-ep93xx.h ep93xx: Don't use system controller defines in audio drivers ep93xx: Move PHYS_BASE defines to local SoC header file (update to v3.3-rc7) Conflicts: arch/arm/mach-s3c2440/common.h
Diffstat (limited to 'drivers/input/mouse/alps.c')
-rw-r--r--drivers/input/mouse/alps.c7
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;
/*