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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-09-04 09:22:54 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-09-04 09:22:54 -0700 |
| commit | a6cbfa1e6d38c4b3ab0ce7e3aea4bb4e744f24b8 (patch) | |
| tree | 8960e571a398b5d32e72bdb9c89ce965daa870ab /Documentation/gpio | |
| parent | f5308d1b83eba20e69df5e0926ba7257c8dd9074 (diff) | |
| parent | 08d6ac9ee5fedd82040bc878705981b67a116a3f (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 4.14 merge window.
Diffstat (limited to 'Documentation/gpio')
| -rw-r--r-- | Documentation/gpio/drivers-on-gpio.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/gpio/drivers-on-gpio.txt b/Documentation/gpio/drivers-on-gpio.txt index 306513251713..9a78d385b92e 100644 --- a/Documentation/gpio/drivers-on-gpio.txt +++ b/Documentation/gpio/drivers-on-gpio.txt @@ -84,6 +84,11 @@ hardware descriptions such as device tree or ACPI: NAND flash MTD subsystem and provides chip access and partition parsing like any other NAND driving hardware. +- ps2-gpio: drivers/input/serio/ps2-gpio.c is used to drive a PS/2 (IBM) serio + bus, data and clock line, by bit banging two GPIO lines. It will appear as + any other serio bus to the system and makes it possible to connect drivers + for e.g. keyboards and other PS/2 protocol based devices. + Apart from this there are special GPIO drivers in subsystems like MMC/SD to read card detect and write protect GPIO lines, and in the TTY serial subsystem to emulate MCTRL (modem control) signals CTS/RTS by using two GPIO lines. The |