> On Dec 13, 2017, at 1:22 PM, BALATON Zoltan <bala...@eik.bme.hu> wrote:
>
> On Wed, 13 Dec 2017, Programmingkid wrote:
>>> On Dec 13, 2017, at 4:14 AM, Daniel P. Berrange <berra...@redhat.com> wrote:
>>>
>>> On Tue, Dec 12, 2017 at 12:49:34PM -0500, Programmingkid wrote:
>>>>
>>>>> On Dec 12, 2017, at 9:34 AM, Daniel P. Berrange <berra...@redhat.com>
>>>>> wrote:
>>>>>
>>>>> On Sun, Dec 10, 2017 at 02:10:41AM -0500, Programmingkid wrote:
>>>>>> On Macintosh keyboards there is a key called fn that is used to give the
>>>>>> function keys more functionality. Does this key exist in the keyboard
>>>>>> keys
>>>>>> database?
>>>>>
>>>>> When you say "Macintosh keyboards" are you talking about the old style
>>>>> keyboards with Apple's custom ADB connector, or simply Apple branded
>>>>> USB keyboards ?
>>>>
>>>> USB keyboards.
>>>>
>>>>>
>>>>> If its the latter (USB), then please plug it into a Linux machine, and
>>>>> in a text console (ie not X11) run 'showkey' and press this 'fn' key on
>>>>> its own and tell me what (if any) hex code gets printed.
>>>>
>>>> There was no response to the fn key.
>>>
>>> Doh, I made a mistake - you need to run 'showkey -s' to get raw
>>> scancodes.
>>> Can you try this again, pressing 'fn' on its own, and also press 'fn' in
>>> combination with some function keys.
>>
>> Sorry but showkey still did not register the fn key being pushed.
>
> I don't know how the fn key is handled but the Linux driver knows about it so
> maybe it could help to understand:
>
> https://github.com/torvalds/linux/blob/master/drivers/hid/hid-apple.c
>
> Regards,
> BALATON Zoltan
Thank you BALATON for the file. One thing that caught my eye in this file is
this:
static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
struct hid_usage *usage, __s32 value)
{
struct apple_sc *asc = hid_get_drvdata(hid);
const struct apple_key_translation *trans, *table;
if (usage->code == KEY_FN) {
asc->fn_on = !!value;
Why would they need the double !?
I think the input_event() function is what sends key input to the applications.
It appears that the function key is not sent to input_event().
This key is usable with QEMU on Mac OS X. The NSEventTypeFlagsChanged event is
what detects it in the cocoa.m file. Currently the code does not account for
this key. I will make a patch to add support for the function key soon.
