no HID mouse movement with iPad despite successful BLE connection

RE: no HID mouse movement with iPad despite successful BLE connection

i_4556 — Tue, 17 Sep 2024 15:00:58 GMT

Hello,

We are having the same issue and made an interesting discovery.

Including a report ID in the report map seems to be the problem with ipad:

 0x85, 0x01, /* Report Id (1) */

Except that if you dont include a report ID, or set it to zero, then windows doesnt like it and your device doesnt work with windows.

Hopefully this helps us move forwards.

I have not yet exhaustively tried every possible report ID value...

RE: no HID mouse movement with iPad despite successful BLE connection

Sigurd — Tue, 17 Sep 2024 09:26:43 GMT

What iPad model are you using?

Do you have one of these listed here? https://support.apple.com/en-us/108938

Also, have you enabled AssistiveTouch?

RE: no HID mouse movement with iPad despite successful BLE connection

dnclem — Mon, 16 Sep 2024 14:06:14 GMT

Hello,

We are only using an HID mouse. Here is the report map for reference:

static uint8_t report_map[] = {

    0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
    0x09, 0x02, /* Usage (Mouse) */
    0xA1, 0x01, /* Collection (Application) */
    0x85, 0x01, /* Report Id (1) */
    0x09, 0x01, /* Usage (Pointer) */
    0xA1, 0x00, /* Collection (Physical) */
    0x05, 0x09, /* Usage Page (Button) */
    0x19, 0x01, /* Usage Minimum (0x01) */
    0x29, 0x03, /* Usage Maximum (0x03) */
    0x15, 0x00, /* Logical Minimum (0) */
    0x25, 0x01, /* Logical Maximum (1) */
    0x95, 0x03, /* Report Count (3) */
    0x75, 0x01, /* Report Size (1) */
    0x81, 0x02, /* Input (Data,Var,Abs,No Wrap,Linear,...) */
    0x95, 0x01, /* Report Count (1) */
    0x75, 0x05, /* Report Size (5) */
    0x81, 0x03, /* Input (Const,Var,Abs,No Wrap,Linear,...) */
    0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
    0x09, 0x30, /* Usage (X) */
    0x09, 0x31, /* Usage (Y) */
    0x09, 0x38, /* Usage (Wheel) */
    0x16, 0x00, 0x80, /* Logical Minimum (-32768) */ //81???
    0x26, 0xFF, 0x7F, /* Logical Maximum (32767) */
    0x75, 0x10, /* Report Size (16) */
    0x95, 0x03, /* Report Count (3) */
    0x81, 0x06, /* Input (Data,Var,Rel,No Wrap,Linear,...) */
    0xC0,       /* End Collection */
    0xC0        /* End Collection */

};

RE: no HID mouse movement with iPad despite successful BLE connection

Sigurd — Fri, 13 Sep 2024 12:26:10 GMT

Hi!
Do you only have HID mouse on the device, or do you have other HID services as well, e.g. mouse+keyboard in the same HID report map?

RE: no HID mouse movement with iPad despite successful BLE connection

dnclem — Thu, 12 Sep 2024 20:51:27 GMT

For reference I have attached the log of another 3rd party wireless mouse that successfully connects to and can move the cursor on the same iPad device.

devzone.nordicsemi.com/.../sniffer_2D00_mouse.pcapng