nrf24lu1p USB hid ReportDescriptor size greater than 255

[jinsheng20]

I want write nrf24lu1p usb hid mouse, but ReportDescriptor size greater than 255bytes Cause cannot enumerate.

[ovrebekk]

Hi

This is a limitation in the nRF24LU1+ USB stack.

If you take a look at the hal_usb_hid_t struct you can see that the report descriptor size is stored in a uint8_t variable, which means the maximum size is 255.

typedef struct {
hal_usb_hid_desc_t* hid_desc;
uint8_t* hid_report_desc;
uint8_t hid_report_desc_size;
} hal_usb_hid_t; 

Best regards
Torbjørn Øvrebekk

[jinsheng20]

Thank you for your answer. I want to send more than 255 bytes of data, what do you suggest I do to give an example? if I change uint8_t variable and so on to uint16_t , Is there going to be a problem?