The the 0x6A and 0x6B tablets report 1024 pressure levels, but the
wacom_graphire_irq function only reads 9 bits of data, which will
cause pressure values to wrap once they exceed 511. This has already
been addressed in 2.6.38+ by commit 04ada80847.
Fixes: e33ca805c8 ("Add 3 new models: 6A, 6B, and 97 for kernel 2.6.35 and
older")
Signed-off-by: Jason Gerecke <jason.gere...@wacom.com>
---
2.6.30/wacom_wac.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/2.6.30/wacom_wac.c b/2.6.30/wacom_wac.c
index e2696ef..5bf69d4 100644
--- a/2.6.30/wacom_wac.c
+++ b/2.6.30/wacom_wac.c
@@ -368,7 +368,7 @@ static int wacom_graphire_irq(struct wacom_wac *wacom)
}
}
if (wacom->tool[0] != BTN_TOOL_MOUSE) {
- input_report_abs(input, ABS_PRESSURE, data[6] |
((data[7] & 0x01) << 8));
+ input_report_abs(input, ABS_PRESSURE, data[6] |
((data[7] & 0x03) << 8));
input_report_key(input, BTN_TOUCH, data[1] & 0x01);
input_report_key(input, BTN_STYLUS, data[1] & 0x02);
input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
--
2.17.0
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