Hi all:
I met some problems about GPIO usage on dm365evm. I didn't find any nods in /dev or /proc directory. In dvsdk, there's no example about GPIO.
And I found some codes and description in kernel files. Seems just got following steps to use GPIO:
1.
/* set as input or output, returning 0 or negative errno */
int gpio_direction_input(unsigned gpio);
int gpio_direction_output(unsigned gpio, int value);
2.
/* GPIO INPUT: return zero or nonzero */
int gpio_get_value(unsigned gpio);
/* GPIO OUTPUT */
void gpio_set_value(unsigned gpio, int value);
Is that enough to configure and use the corresponding GPIOs? Thanks to all
Best regards;
Btw: Merry X'mas~