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Diffstat (limited to 'Documentation/input/input.rst')
| -rw-r--r-- | Documentation/input/input.rst | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/Documentation/input/input.rst b/Documentation/input/input.rst index 47f86a4bf16c..d9a6de87d02d 100644 --- a/Documentation/input/input.rst +++ b/Documentation/input/input.rst @@ -9,7 +9,7 @@ Introduction Architecture ============ -Input subsystem a collection of drivers that is designed to support +Input subsystem is a collection of drivers that is designed to support all input devices under Linux. Most of the drivers reside in drivers/input, although quite a few live in drivers/hid and drivers/platform. @@ -50,7 +50,7 @@ will be available as a character device on major 13, minor 63:: crw-r--r-- 1 root root 13, 63 Mar 28 22:45 mice -This device usually created automatically by the system. The commands +This device is usually created automatically by the system. The commands to create it by hand are:: cd /dev @@ -180,7 +180,7 @@ whole suite. It handles all HID devices, and because there is a very wide variety of them, and because the USB HID specification isn't simple, it needs to be this big. -Currently, it handles USB mice, joysticks, gamepads, steering wheels +Currently, it handles USB mice, joysticks, gamepads, steering wheels, keyboards, trackballs and digitizers. However, USB uses HID also for monitor controls, speaker controls, UPSs, @@ -188,7 +188,7 @@ LCDs and many other purposes. The monitor and speaker controls should be easy to add to the hid/input interface, but for the UPSs and LCDs it doesn't make much sense. For this, -the hiddev interface was designed. See Documentation/hid/hiddev.txt +the hiddev interface was designed. See Documentation/hid/hiddev.rst for more information about it. The usage of the usbhid module is very simple, it takes no parameters, @@ -264,11 +264,11 @@ events on a read. Their layout is:: struct timeval time; unsigned short type; unsigned short code; - unsigned int value; + int value; }; ``time`` is the timestamp, it returns the time at which the event happened. -Type is for example EV_REL for relative moment, EV_KEY for a keypress or +Type is for example EV_REL for relative movement, EV_KEY for a keypress or release. More types are defined in include/uapi/linux/input-event-codes.h. ``code`` is event code, for example REL_X or KEY_BACKSPACE, again a complete |