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atc1441 / CH559sdccUSBHost

USB host to Arduino Interface with the Cheap CH559 uC
GNU General Public License v3.0
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HID keyboards don't set their own LEDs #7

Open dmcnaugh opened 4 years ago

dmcnaugh commented 4 years ago

In the HID specification for keyboards, the keyboard is not responsible for setting its own LEDs for

it is up to the driver on the USB host side to send the command to the keyboard to set/unset these LEDs as required.

With the current implementation is this possible?

dmcnaugh commented 4 years ago

OK. Feeling a bit proud of what I've been able to do here. I have only been looking into modifying the code for the CH559 and trying to understand the USB HID protocol for a few days now... (never done anything with an 8051 or USB before).

But I have this working! In response to data received over the serial interface the CH559 now sends the correct transaction to the USB keyboard to set the LEDs.

I will spend a bit more time testing it and making it robust. Then I will put together a PR for your consideration.