On Sun, Mar 17, 2019 at 03:10:01PM +0100, Paolo Bonzini wrote:
> Some drivers do I2C bitbanging by keeping the output to 0 and flipping
> the GPIO direction between input and output (see for example in Linux
> gpio_set_open_drain_value_commit, in drivers/gpio/gpiolib.c).
> When the GPIO is set to i
Some drivers do I2C bitbanging by keeping the output to 0 and flipping
the GPIO direction between input and output (see for example in Linux
gpio_set_open_drain_value_commit, in drivers/gpio/gpiolib.c).
When the GPIO is set to input, the pull-up resistor brings the output
to 1, while when the GPIO
