]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
i2c/tsl2550: Fix lux value in dark environment
authorMichele Jr De Candia <michele.decandia@valueteam.com>
Tue, 28 Jul 2009 14:33:03 +0000 (16:33 +0200)
committerJean Delvare <khali@linux-fr.org>
Tue, 28 Jul 2009 14:33:03 +0000 (16:33 +0200)
commit96f699ad09c8b3c55cd229506a9add0047838e3e
treee7534331262fd5dc17c30d2f27b9440e6d58313b
parent4733fd328f14280900435d9dbae1487d110a4d56
i2c/tsl2550: Fix lux value in dark environment

I've tested TSL2550 driver and I've found a bug: when light is off,
returned value from tsl2550_calculate_lux function is -1 when it should
be 0 (sensor correctly read that light was off).

I think the bug is that a zero c0 value (approximated value of ch0) is
misinterpreted as an error.

Signed-off-by: Michele Jr De Candia <michele.decandia@valueteam.com>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
drivers/i2c/chips/tsl2550.c