[EMAIL PROTECTED] wrote:
Hi,
Nothinig prevents you from creating a sysfs entry wich returns
tahvo_get_backlight_level()
or even a proc one, if you really are into that sort of thing.
There is such entry -
/sys/devices/platform/omapfb/panel/backlight_level
One related thing would interest me:
- would it be possible to crank the level up further than the 127 the
number in /sys/devices/platform/omapfb/panel/backlight_level states when
the
display plugin has the maximum setting?
Not on kernel level and probably also not also directly on tahvo
register access level.
kernel-source-2.6.16/drivers/cbus/tahvo.c:
static int tahvo_7bit_backlight;
int tahvo_get_backlight_level(void)
{
int mask;
if (tahvo_7bit_backlight)
mask = 0x7f;
else
mask = 0x0f;
return tahvo_read_reg(TAHVO_REG_LEDPWMR) & mask;
}
int tahvo_get_max_backlight_level(void)
{
if (tahvo_7bit_backlight)
return 0x7f;
else
return 0x0f;
}
void tahvo_set_backlight_level(int level)
{
int max_level;
max_level = tahvo_get_max_backlight_level();
if (level > max_level)
level = max_level;
tahvo_write_reg(TAHVO_REG_LEDPWMR, level);
}
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