Subject: Re: [PATCH slof] Fix function keys sequence on USB

From: Dinar Valeev <[email-masked]>
Date: Sat, 30 May 2015 21:21:41 +0200

On 05/30/2015 11:59 AM, Alexey Kardashevskiy wrote:
> On 05/29/2015 11:30 PM, Dinar valeev wrote:
>> From: Dinar Valeev <[email-masked]>
>>
>> Original issue is home and end keys are not functional in grub2.
> 
> "home" works for in grub/ubuntu14 and grub2/fedora21. "end" does not but I am not sure that your patch will fix it,
It is easy to test :)

Not sure about 'home'. It's behaviour was acting as ESC in grub menu edit. My intention was to fix 'end' sequence, so the rest 
was just adjusted.
> 
>> Later I've found other inconsistencies in f1-f12 keys.
> 
> The keys did not work in VGA or in stdio too?
In my understanding this happens only on VGA.
> 
> By "stdio" I mean running QEMU like this:
> -nographic -vga none -nodefaults \
> -chardev stdio,id=id0,signal=off,mux=on \
> -device spapr-vty,id=id1,chardev=id0,reg=0x71000100 \
> -mon id=id2,chardev=id0,mode=readline
> 
> This is how I tried grub and keys, terminal type is "xterm". What do I miss?
-vga std -vnc :1
> 
>> "Correct sequence" was crabbed by pressing key on cat running in
>> xterm.
> 
> And the existing codes are for what type of term
I have no idea what previous sequence was based on.
> 
> 
>> Tested with Home, End, F2, Del and F10 keys in grub2
> 
> Please add "slof" in the subject so everybody could know what this is about; and module/file name to tell what part it is touching. I did not notice the patch till I saw it on google+ ;) Like:
Next time I will, thanks for information.

It would be cool to have an information for contributors, describing a procedure.
> 
> [PATCH slof] usb-hid: Fix function keys sequence on USB
> 
> Or/and put me or Nikunj in cc:
> 
> 
>> Signed-off-by: Dinar Valeev <[email-masked]>
>> ---
>>   lib/libusb/usb-hid.c | 40 +++++++++++++++++-----------------------
>>   1 file changed, 17 insertions(+), 23 deletions(-)
>>
>> diff --git a/lib/libusb/usb-hid.c b/lib/libusb/usb-hid.c
>> index f0cab8a..ccd5ba9 100644
>> --- a/lib/libusb/usb-hid.c
>> +++ b/lib/libusb/usb-hid.c
>> @@ -190,33 +190,29 @@ static void check_key_code(uint8_t *buf)
>>                   case 0x3a:                            /* F1 */
>>                       write_key(0x1b);
>>                       write_key(0x5b);
>> -                    write_key(0x31);
>> -                    write_key(0x31);
>> -                    write_key(0x7e);
>> +                    write_key(0x4f);
>> +                    write_key(0x50);
>>                       break;
>>
>>                   case 0x3b:                        /* F2 */
>>                       write_key(0x1b);
>>                       write_key(0x5b);
>> -                    write_key(0x31);
>> -                    write_key(0x32);
>> -                    write_key(0x7e);
>> +                    write_key(0x4f);
>> +                    write_key(0x51);
>>                       break;
>>
>>                   case 0x3c:
>>                       write_key(0x1b);               /* F3 */
>>                       write_key(0x5b);
>> -                    write_key(0x31);
>> -                    write_key(0x33);
>> -                    write_key(0x7e);
>> +                    write_key(0x4f);
>> +                    write_key(0x52);
>>                       break;
>>
>>                   case 0x3d:
>>                       write_key(0x1b);        /* F4 */
>>                       write_key(0x5b);
>> -                    write_key(0x31);
>> -                    write_key(0x34);
>> -                    write_key(0x7e);
>> +                    write_key(0x4f);
>> +                    write_key(0x53);
>>                       break;
>>
>>                   case 0x3e:
>> @@ -254,7 +250,7 @@ static void check_key_code(uint8_t *buf)
>>                   case 0x42:
>>                       write_key(0x1b);        /* F9 */
>>                       write_key(0x5b);
>> -                    write_key(0x31);
>> +                    write_key(0x32);
>>                       write_key(0x30);
>>                       write_key(0x7e);
>>                       break;
>> @@ -262,7 +258,7 @@ static void check_key_code(uint8_t *buf)
>>                   case 0x43:
>>                       write_key(0x1b);           /* F10 */
>>                       write_key(0x5b);
>> -                    write_key(0x31);
>> +                    write_key(0x32);
>>                       write_key(0x31);
>>                       write_key(0x7e);
>>                       break;
>> @@ -270,7 +266,7 @@ static void check_key_code(uint8_t *buf)
>>                   case 0x44:
>>                       write_key(0x1b);           /* F11 */
>>                       write_key(0x5b);
>> -                    write_key(0x31);
>> +                    write_key(0x32);
>>                       write_key(0x33);
>>                       write_key(0x7e);
>>                       break;
>> @@ -278,7 +274,7 @@ static void check_key_code(uint8_t *buf)
>>                   case 0x45:
>>                       write_key(0x1b);           /* F12 */
>>                       write_key(0x5b);
>> -                    write_key(0x31);
>> +                    write_key(0x32);
>>                       write_key(0x34);
>>                       write_key(0x7e);
>>                       break;
>> @@ -290,36 +286,34 @@ static void check_key_code(uint8_t *buf)
>>                   case 0x49:
>>                       write_key(0x1b);           /* INS */
>>                       write_key(0x5b);
>> -                    write_key(0x31);
>> +                    write_key(0x32);
>>                       write_key(0x7e);
>>                       break;
>>
>>                   case 0x4a:
>>                       write_key(0x1b);          /* HOME */
>>                       write_key(0x5b);
>> -                    write_key(0x32);
>> -                    write_key(0x7e);
>> +                    write_key(0x48);
>>                       break;
>>
>>                   case 0x4b:
>>                       write_key(0x1b);          /* PgUp */
>>                       write_key(0x5b);
>> -                    write_key(0x33);
>> +                    write_key(0x35);
>>                       write_key(0x7e);
>>                       break;
>>
>>                   case 0x4c:
>>                       write_key(0x1b);           /* DEL */
>>                       write_key(0x5b);
>> -                    write_key(0x34);
>> +                    write_key(0x33);
>>                       write_key(0x7e);
>>                       break;
>>
>>                   case 0x4d:
>>                       write_key(0x1b);           /* END */
>>                       write_key(0x5b);
>> -                    write_key(0x35);
>> -                    write_key(0x7e);
>> +                    write_key(0x46);
>>                       break;
>>
>>                   case 0x4e:
>>
> 
>