The generic HID keyboard not work in PC BIOS

[shaoyuan1943]

Hi~

I'm using nRF52840 SDK 14.0 to build USB keyboard, the HID type is generic, the problem is:

when is

APP_USBD_HID_GENERIC_GLOBAL_DEF(m_app_hid_kbd, HID_KBD_INTERFACE, hid_kbd_user_ev_handler, (NRF_DRV_USBD_EPIN1), keyboard_hid_report_desc, 1, 1, APP_USBD_HID_SUBCLASS_BOOT, APP_USBD_HID_PROTO_KEYBOARD);

the  keyboard work fine in BIOS but ctrl\shift\alt not work, when is 

APP_USBD_HID_GENERIC_GLOBAL_DEF(m_app_hid_kbd, HID_KBD_INTERFACE, hid_kbd_user_ev_handler, (NRF_DRV_USBD_EPIN1), keyboard_hid_report_desc, 1, 1, APP_USBD_HID_SUBCLASS_NONE, APP_USBD_HID_PROTO_KEYBOARD);

the keyboard work fine but not work in BIOS.

Has somebody know where is wrong?

Thank everybody:)

[Kenneth]

Hello,

Do you experience this on one specific pc, or also on other pc's? Would be interesting to look at an USB sniffer log, to check the characters in the notification sent from the "keyboard" when pressing and releasing modifier keys.

Do you see the same if for instance using latest nRF5 SDK v17?

Best regards,
Kenneth

[wzszzxj]

HI，Kenneth：

 how to set up APP_USBD_HID_GENERIC_GLOBAL_DEF    in SDK v16?