topic Re: [TIPS] uTASKER USB HID Keyboard Numlock Capslock Scroll lock STATE DETECTION in Kinetis Microcontrollers

[TIPS] uTasker USB HID Keyboard State Detection

alresarena — Fri, 12 Jan 2018 06:14:04 GMT

[TIPS] uTasker USB HID Keyboard State Detection

usb_application.c :

static unsigned char ucLockKeys = 0;
#define NUM_LOCK_FLAG    0x01
#define CAPS_LOCK_FLAG   0x02
#define SCROLL_LOCK_FLAG 0x04
#define LOCK_KEYS        (NUM_LOCK_FLAG | CAPS_LOCK_FLAG | SCROLL_LOCK_FLAG)
static void fnSetKeyboardOutput(unsigned char ucOutputs) // assumed to be set report with a single byte content
{
    // Directly change the state of outputs
    //
    ucLockKeys = (ucOutputs & LOCK_KEYS);                 // present lock key states
}

Credits by: Mark Butcher

Re: [TIPS] uTASKER USB HID Keyboard Numlock Capslock Scroll lock STATE DETECTION

mjbcswitzerland — Fri, 12 Jan 2018 15:04:21 GMT

Hi Alres

I am pleased to see that you are progressing with your HID Keyboard work!

Could you consider doing the following to be more efficient? The present state of each lock key is then kept locally as a flag in a byte.

Regards

Mark

Re: [TIPS] uTASKER USB HID Keyboard Numlock Capslock Scroll lock STATE DETECTION

alresarena — Fri, 12 Jan 2018 15:31:15 GMT

Thank you so much Sir Mark:smileyhappy: .. I'll try your code because it looks cleaner and efficient.