On 04/04/2022 07:12, Bastien Nocera <hadess@xxxxxxxxxx> wrote:
On Mon, 2022-04-04 at 09:10 +0200, Nestor Lopez Casado wrote: > Hello, > > I've got this from asking internally: > > " The information should be accurate in both BAS and HIDPP > interfaces. > However, today the BAS interface is limited. Version 2.0 will be > better but not yet released. As you have access to the HIDPP, I > recommend using only this one. Like this, the type of connection can > be ignored (BLE or USB dongle) " As per the patch I just sent (HID: logitech-hidpp: Add Signature M650), it will unfortunately be difficult to disable the battery reporting directly from bluetoothd. We can detect whether a Bluetooth device supports HID++, as it has a GATT attribute with a Logitech specific UUID[1] (more info/specs welcome), but not all the HID++ capable Bluetooth devices seem to be detected by the kernel and they need to be added to a list. Ideally, the kernel could enable HID++ support for all the Bluetooth HID++-capable devices, and we could easily block reporting in upower or bluetoothd without having to care at runtime about whether there's a separate battery reporting interface because we could assume it was always there. Any ideas on how to do that?
Any ideas, anyone?
[1]: Device DE:1D:F3:3B:E4:B0 (random) Name: Logi M650 Alias: Logi M650 Appearance: 0x03c2 Icon: input-mouse Paired: yes Trusted: yes Blocked: no Connected: no WakeAllowed: yes LegacyPairing: no UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb) UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb) UUID: Device Information (0000180a-0000-1000-8000-00805f9b34fb) UUID: Battery Service (0000180f-0000-1000-8000-00805f9b34fb) UUID: Human Interface Device (00001812-0000-1000-8000-00805f9b34fb) UUID: Logitech International SA (0000fd72-0000-1000-8000-00805f9b34fb) UUID: Vendor specific (00010000-0000-1000-8000-011f2000046d) Modalias: usb:v046DpB02Ad0009 ManufacturerData Key: 0x0006 ManufacturerData Value: 03 00 80 ... ServiceData Key: 0000fd72-0000-1000-8000-00805f9b34fb ServiceData Value: 10 01 01 2a b0 02 02 09 ...*....
