gpiod_get_value_cansleep
bool connected = gpiod_get_value_cansleep(dcp->hdmi_hpd);
bool connected = gpiod_get_value_cansleep(dcp->hdmi_hpd);
connected = gpiod_get_value_cansleep(dcp->hdmi_hpd);
bool connected = gpiod_get_value_cansleep(dcp->hdmi_hpd);
bool connected = gpiod_get_value_cansleep(dcp->hdmi_hpd);
int gpiod_get_value_cansleep(const struct gpio_desc *);