Lines Matching refs:GPIO

1 Subsystem drivers using GPIO
4 Note that standard kernel drivers exist for common GPIO tasks and will provide
9 - leds-gpio: drivers/leds/leds-gpio.c will handle LEDs connected to  GPIO
13   i.e. a LED will turn on/off in response to a GPIO line going high or low
16 - gpio-keys: drivers/input/keyboard/gpio_keys.c is used when your GPIO line
20   GPIO line cannot generate interrupts, so it needs to be periodically polled
25   mouse cable and connect the wires to GPIO lines or solder a mouse connector
29   an external speaker connected to a GPIO line.
32   detection switches using GPIO, which is useful for your homebrewn pinball
38   HDMI connector. It will provide a better userspace sysfs interface than GPIO.
41   system by pulling a GPIO line and will register a restart handler so
45   by pulling a GPIO line and will register a pm_power_off() callback so that
49   (off/on) that uses a GPIO, and integrated with the clock subsystem.
52   (two wires, SDA and SCL lines) by hammering (bitbang) two GPIO lines. It will
58   GPIO hammering (bitbang). It will appear as any other SPI bus on the system
64   a GPIO line, integrating with the W1 subsystem and handling devices on
68   system, connected to a GPIO line (and optionally a GPIO alarm line),
73   regulator providing a certain voltage by pulling a GPIO line, integrating
77   that will periodically "ping" a hardware connected to a GPIO line by toggling
82   a set of simple GPIO lines: RDY, NCE, ALE, CLE, NWP. It interacts with the
86 Apart from this there are special GPIO drivers in subsystems like MMC/SD to
87 read card detect and write protect GPIO lines, and in the TTY serial subsystem
88 to emulate MCTRL (modem control) signals CTS/RTS by using two GPIO lines. The
89 MTD NOR flash has add-ons for extra GPIO lines too, though the address bus is