This activity being quite energy consuming, it emptied the whole battery. The Logitech application under Windows works that way: And one dark night, while fragging on QuakeLive, supporrt keyboard stopped working: Success 0 URB length : And I have actually no idea what they mean. Logitech K keyboard and Unifying Receiver Linux support
When pressed, a LED k705 light up on the keyboard: There’s also several types of packets in the USB wire protocol, and at least two of them interest us there, they are.
To achieve this, I looked both at the Logitech Solar App and Wireshark while bringing more and more light near the keyboard, increasing the lux value received by the meter on the Solar App, and saw that the fields represented in blue see below where changing in Wireshark.Ī device might contains one or several configurations. I did not need it, but I learned a few things. This keyboard, like many of the new wireless devices from Logitech, uses the Unifying interface. How the keyboard works This keyboard, like many of the new wireless devices from Logitech, uses the Unifying logitexh.
We know how to triggers the light meter, and we know how to decode the packets. Therefore I advise you to plug another keyboard or use the laptop keyboard if you’re doing this on a laptopotherwise you’ll get crazy trying to logitec the keyboard you’re typing on. Logitech K750 keyboard and Unifying Receiver Linux supportĪs far as I know, there’s nothing in suport USB HID protocol that handles this kind of functionality battery status, light meter… in a standard way. Interrupt packets, a packet send spontaneously Controls packets, used for command and status operations. Well, actually, you can’t decode them like that, unless you’re a freak or a Logitech engineer.
Recently, a driver called hid-logitech-dj has been added to the Linux kernel. USB stuff you need to know You don’t need to know much about USB to understand what I’ll write about below, but for the sake of comprehensibility I’ll write a couple of things here before jumping in. What the Logitech application does The Logitech application under Windows works that way: Now we’ve enough information to build our own very basic solar application. We have to disconnect the Logitech Unifying Receiver from the kernel.
Interfaces are regrouped into a configuration.īut sending this to the keyboard will trigger an interesting thing: Knowing we’re looking for 2 values battery charge and light meterwe just need to observe and compare the packet emitted on the wire with the values displayed by the Logitech Solar App. Questions about your Wireless Solar Keyboard K? We’ve got the answers, videos, downloads and information you. Having issues with your keyboard, mouse or Logitech Options on macOS. Register Your Product File a warranty claim.