HID, report_map_data[] what is it needed for?

[Mikhail]

Hi!

I use HID example and try to understand in a hid service init for why report_map_data[] with a table.

What is do this array? If I use keyboard example, I should get event in the on_hids_evt(). But this array for what?

[Mttrinh]

Hi,

That array is the USB HID report descriptor. The descriptor is a hard coded array of bytes that describes the device's data packets. Which includes, how many packets the device supports, the size of the packets, and the purpose of each byte and bit in the packet. 

You can read more about HID here. Also check out the specification.

[Mikhail]

Hi!

Thanks. I know that is the HID report descriptor. Should I any change in it? Or just should leave it as it is?. 

Explain pls, this ble HID- it is like a keyboard? Is this example should sends some keys code out? But I have interrupt where possible to receive some data...?