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usb: add numeric keypad support to HID driver

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When keys are pressed on the numeric keypad, emit key codes for the numbers,
operators, dot and enter.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Vincent Palatin 2012-01-09 12:59:36 +00:00 • committed by Wolfgang Denk
parent 3d17308e40
commit d53da847cf
1 changed files with 10 additions and 0 deletions
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10
common/usb_kbd.c
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@ -87,6 +87,12 @@ static const unsigned char usb_kbd_numkey_shifted[] = {
'|', '~', ':', '"', '~', '<', '>', '?'
};
static const unsigned char usb_kbd_num_keypad[] = {
'/', '*', '-', '+', '\r',
'1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
'.', 0, 0, 0, '='
};
/*
* NOTE: It's important for the NUM, CAPS, SCROLL-lock bits to be in this
* order. See usb_kbd_setled() function!
@ -218,6 +224,10 @@ static int usb_kbd_translate(struct usb_kbd_pdata *data, unsigned char scancode,
keycode = usb_kbd_numkey[scancode - 0x1e];
}
/* Numeric keypad */
if ((scancode >= 0x54) && (scancode <= 0x67))
keycode = usb_kbd_num_keypad[scancode - 0x54];
if (data->flags & USB_KBD_CTRL)
keycode = scancode - 0x3;