welcome to signed/unsigned hell... Index: backlight.c =================================================================== --- backlight.c (revision 60) +++ backlight.c (working copy) @@ -54,8 +54,8 @@ OUTREG(0x7af8, 0x00000001 | ((unsigned int)value << 8)); } -void write_backlight(unsigned char value) { - unsigned int current = read_backlight(); +void write_backlight(int value) { + int current = read_backlight(); if (current < value) { while (current < value) {
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