Keyboard with boot protocol enabled

[OmerFS]

Hello,

ch55xduino/ch55x/libraries/Generic_Examples/examples/05.USB/HidKeyboard
compiled to ch552 mcu HID working fine on windows and linux. it is not working on bios

How to made work on bios screen?

(by the way, it is working on new model computers bioses but not working on a bit old bioses like Asus N550JV)

Thanks in advance

[DeqingSun]

I can confirm the emulated keyboard does not work on the boot screen of a Mid-2014 macbook pro while a real Dell keyboard does work.
So there must be some implementation problem in the boot protocol. I will take a look soon.

[DeqingSun]

For progress record:

There is some progress in https://github.com/DeqingSun/ch55xduino/blob/ec3b8958397dac77035ab4ae40cd06331b51320d/ch55xduino/ch55x/libraries/Generic_Examples/examples/05.USB/HidKeyboard/src/userUsbHidKeyboard/USBhandler.c that deal with HID report access on EP0. More work need to be done to do get EP0 IN work properly.

[DeqingSun]

@OmerFS I seems get it working on my Mac in boot screen. Let me know if this example work for you.

https://github.com/DeqingSun/ch55xduino/tree/19f3f8c1b5a86ab0c537f0cf059bbe71e6849bd1/ch55xduino/ch55x/libraries/Generic_Examples/examples/05.USB/HidKeyboard

[DeqingSun]

Updated in b0067f0
No response from @OmerFS, consider fixed.

[OmerFS]

Hello i am sorry for not returning in time i saw your post in my mail today i have variety of old notebooks i will test and post the results thank you so much.

[OmerFS]

Hello i tested new update on 3 laptops ;
Dell Latitude E6330
Fujitsu Lifebook LH532
Asus N550JV

it works on windows but it didn't work in bios screen
i also changed keyboardProtocol varible but results were same;didn't work
(//0 is boot protocol, 1 is report protocol
__xdata uint8_t keyboardProtocol = 1; from 1 to 0 but it didnt work again)
my humble opinion i suggest you to check stm32 libraries and HID-project library. i was able to make it with stm32 mcu using cubeide generated code for arduino(pro micro) i used HID-project both of them worked.

[DeqingSun]

Thanks for sharing. I suppose there must be some USB request that I did not handle properly.

I'll check it this weekend with a real windows machine. I suppose the bios in windows and mac still handle the USB differently.

[DeqingSun]

I've tested it on
Lenovo Thinkpad t410 2518-f4u 2010
Acer Aspire 4930 JAL90 2008
They both work in Bios.
I'll take a look at the other projects.

I tried to use

      Keyboard_press(KEY_DOWN_ARROW);
      delay(100); //a quick capslock press is not recognized on mac
      Keyboard_release(KEY_DOWN_ARROW);

And the cursor can be moved in BIOS