But if you have to configure it manually, you should install the “solaar” package. Find More Posts by tredegar. Please visit this page to clear all LQ-related cookies. This keyboard, like many of the new wireless devices from Logitech, uses the Unifying interface. When pressing the “light” button, an URB of type interrupt is sent by the keyboard to the computer; An URB control packet is sent by the computer to the keyboard in response; Regularly URB interrupt packets are sent just after. The “light meter and battery values” packet This is most interesting packet. Post as a guest Name.

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Zanna 50k 13 Success 0 URB length [bytes]: F12 put my computer in standby not shutdown, pinux as tredegar stated this can be changed.

This activity being quite energy consuming, it emptied the whole battery. If it doesn’t work, then you might be out of luck.

– Logitech K not working – Ask Ubuntu

Keyboard feels very sturdy for logjtech so thin! There’s a an URB of type interrupt sent each time you press any key with some data in it.

How the keyboard works This keyboard, like many of the new wireless devices from Logitech, uses the Unifying interface. To achieve that, you need a virtual machine emulator that can do USB pass-through. This book contains many real life examples derived from the author’s experience as a Linux system and network administrator, trainer and consultant.


Logitech K not working Ask Question. As far as I know, there’s nothing in the USB HID protocol that handles this kind of functionality battery status, light meter… in a standard way. This is the one sent by the keyboard to the host and that contains the data we want to retrieve. I cannot advise you about special “multimedia” keys, but these are not usually difficult to configure manually in the event that you do not find they work from the moment you plug it in.

Pushing this same button while the application is running will makes the light meter activated: Linux – Hardware This forum is for Hardware issues. Now we’ve enough information to build our own very basic solar application.

That means that while we’re waiting for the packet, we’re dropping packets corresponding to other events from every connected device key presses, pointer motions…. So the first task to accomplish is, unfortunately, to reverse engineer the program.

Logitech keyboards should work out of box with unifying transmitter. Here’s the interesting packets that I noticed once I excluded the noise:. Here’s a quick example.

I have been using the K on Ubuntu Open Source Consulting Domain Registration. The fact that it is wireless, and solar-powered, pogitech matter.


Are you new to LinuxQuestions. BB code is On. This packets come in regularly 1 per second on the wire for some time once you sent the “go for the light meter” packet. I’ve no idea what the GOOD part of the packet is about, but it’s present in every packet and it’s actually very handy to recognize such a packet.

Logitech K750 keyboard and Unifying Receiver Linux support

We know how to triggers the light meter, and we know how to decode the packets. I discovered a bit too late that Drew Fisher did a good presentation on USB reverse engineering at 28c3.

Someone should write code to get the battery status and light meter from Linux: It has an incredible useful feature: If you need more help, don’t hesitate to ask. On the keyboard, there’s a special “light” button up right. This keyboard, like many of the new wireless devices from Logitech, uses the Unifying interface. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.