i have an android tv box (arm h616) that has a 4 digit 7 segment display (plus some icons)
im not sure what type of controller it has but from what i googled it seems that this controllers are controlled
by bit banging 2 or more gpio pins
the original android dtb looks like this
what im trying to achieve (if possible) is to create a gpioiic bus in the dtb and control the display from userland via i2c(8) without any
additional kernel driver
has anyone tried such a thing ?
im not sure what type of controller it has but from what i googled it seems that this controllers are controlled
by bit banging 2 or more gpio pins
the original android dtb looks like this
Code:
fddis_dev {
compatible = "fddis_dev";
fddis_gpio_clk = <0x53 0x7 0x2 0x5 0xffffffff 0xffffffff 0x1>;
fddis_gpio_dat = <0x53 0x7 0x3 0x5 0xffffffff 0xffffffff 0x1>;
status = "okay";
};
additional kernel driver
has anyone tried such a thing ?