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Input: convert keyboard notifier docs into ReST format
This file require minimum adjustments to be a valid ReST file.
Do it, in order to be able to parse it with Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
authored by
Mauro Carvalho Chehab
and committed by
Dmitry Torokhov
2f438935
eba31a3a
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Documentation/input/notifier.txt
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Documentation/input/notifier.txt
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=================
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Keyboard notifier
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=================
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One can use register_keyboard_notifier to get called back on keyboard
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events (see kbd_keycode() function for details). The passed structure is
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order to "eat" the event: the notify loop is stopped and the keyboard event is
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dropped.
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In a rough C snippet, we have:
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In a rough C snippet, we have::
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kbd_keycode(keycode) {
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kbd_keycode(keycode) {
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...
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params.value = keycode;
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if (notifier_call_chain(KBD_KEYCODE,¶ms) == NOTIFY_STOP)
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return;
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apply keysym;
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notifier_call_chain(KBD_POST_KEYSYM,¶ms);
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}
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}
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NOTE: This notifier is usually called from interrupt context.
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.. note:: This notifier is usually called from interrupt context.