[riot-notifications] [RIOT-OS/RIOT] usbus/hid_io: add missing header file, add RX callback function (#16689)

Leandro Lanzieri notifications at github.com
Wed Aug 4 13:39:00 CEST 2021

@leandrolanzieri commented on this pull request.

>  }
 void usb_hid_io_init(usbus_t *usbus, uint8_t *report_desc,
                      size_t report_desc_size)
     usbus_hid_init(usbus, &hid, _hid_rx_pipe,  report_desc, report_desc_size);
+void usb_hid_io_set_rx_cb(usb_hid_io_t *usb_hid_io)

> I want the callback functionality to be an additional, not necessarily required, functionality


> Possibly the naming of the struct `usb_hid_io_t` is bad as it suggests that this struct is supposed to be used in a more genral context than just for the callback functionality.

Also agreed. But if this module will be a singleton and not allow multiple instantiations, the pattern used by xtimer is not necessary. I don't see the need to force the user to allocate such a structure, when it could be instantiated statically by the module (or some other `usb_hid_..` instance in the future).

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