Dear Nordic Engineer
Our costomer has developed a keyboard using LLPM in NCS.Now Now they have encountered some problems.We have been working with them for a long time but there still no good solution to these problems.
1、When using the WIN 10 Version 20H2 or higher the PC will be connected to the keyboard.After working for a period of time the Caps and Num indicator lights will not light up.Our research found that the reason is that the PC did't issue instuctions to the keyboard.In this case,the "keyboard_leds_handler" does not resond.Because the communication data encrtpted we can't capture the data packet,so this problem is shelved and we can't solve it.
2、 In wired mode, the keyboard uses a USB cable to connect to the PC.The keyboard can't wake up the PC while it's sleeping.Our research found that when the PC is sleeping,we call "usb_wakeup => usb_wakeup_request" and the D+ line of the USB will generate a signal.We measured the duration an oscilloscope to be about 10ms, but this did not wake the PC.
Please give us some good suggestions.
Best regard.
