AE-577: Added info regarding hardware used for testing the implementation.

Author: bogdanf132

README.md

@@ -53,6 +53,9 @@ void loop() {
 
 The connection callback (via attachConnectionCallback()) notifies you when a compatible keyboard is connected.
 
+Tested with: Oldschool classic Dell L100 and brand new “gaming” modern GamingX Trust keyboards.
+
+
 ### Mouse
 Reading Mouse Information
 The mouse class provides a callback that returns a structure containing mouse event data. The structure is defined as follows:
@@ -85,16 +88,19 @@ void onMouseEvent(const HIDMouseEvent &mouseEvent) {
 usbMouse.attachMouseEventCallback(onMouseEvent);
 ```
 
+Tested with: basic wired mouse Genius X-Scroll GM-110020, new model GamingX Trust “gaming” mouse and Dell WM 126 wireless  mouse.
+
+
+### Keyboard and Mouse
+In order to use two (or more) HID devices connected via a USB hub to your Portenta C33 board, please open "tusb_config.h" and make sure that "CFG_TUH_HUB" is set to value 1, and that "CFG_TUH_HID" is set to the number of HID  devices you intend to connect to your Arduino (2 in this example). 
+Please also keep in mind that some keyboards and mice which include advanced illumination features might draw more power than the Arduino is able to provide on its
+USB-A port and might therefore lead to a reset or failure to be enumerated by the board. Ideally, use basic USB keyboards and mice, these should work best.
+
 ### Temp. Development instructions 
 Before all the changes get merged into the core, you will have to do some modifications to get this library to compile.
 
 1. Enable TinyUSB HID Host support 
 
 In the core by modify [variants/PORTENTA_C33/tusb_config.h](https://github.com/arduino/ArduinoCore-renesas/blob/main/variants/PORTENTA_C33/tusb_config.h).
 On line 106, add `#define CFG_TUH_HID              1`. 
-Check [this PR](https://github.com/arduino/ArduinoCore-renesas/compare/main...cristidragomir97:ArduinoCore-renesas:hid_host_c33) for more information.
-
-2. Enable weak callback for `tuh_hid_report_received_cb`
-When enabling CFG_TUH_HID in tusb_config.h, the stack will expect a tuh_hid_report_received_cb callback to be defined in every sketch, preventing any sketch that doesn't have anything to do with the HID Host stack from compiling. The hid_host.h file defines weak callbacks in order to prevent this issue, but the TU_ATTR_WEAK is prefixed to most callbacks except fortuh_hid_report_received_cb. These changes add this attribute, allowing any sketch to compile.
-
-Check [this PR](https://github.com/arduino/tinyusb/pull/3/commits/e3e9dd066cd64d98de6bd19d2920fec3019b71c4) for more information.
+Check [this PR](https://github.com/arduino/ArduinoCore-renesas/compare/main...cristidragomir97:ArduinoCore-renesas:hid_host_c33) for more information.