Let’s reverse engineer this 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. If you need to reset your password, click here. It’s not perfect and does not check for error codes, be careful. Has anyone used this keyboard: Open Source Consulting Domain Registration.

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By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Building our solar app Now we’ve enough information to logitwch our own very basic solar application. To be continued Unfortunately, this approach has at least one major drawback.

– Logitech K not working – Ask Ubuntu

There’s a an URB of type interrupt sent each liunx you press any key with some data in it. What’s here interesting is the last part representing the data. The “solaar-gnome3” package provides a gnome application which can be used to add or remove devices from Logitech’s Unifying dongle.

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.


We know how to triggers the light meter, and we know how to decode the packets.

But sending this to the keyboard will trigger an interesting thing: By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. The fact that it is wireless, and llogitech, doesn’t matter. Has anyone used this keyboard: Visit the following links: 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.

This is the one sent by the keyboard to the host and that contains the data we want to retrieve. Pushing this same button while the application is running will makes the light meter activated: Please let us know how you get on.

Sign up using Email and Password. Fortunately, it was easy to decode. Now you probably wonder where the data are in this.

Logitech K750 keyboard and Unifying Receiver Linux support

Since 2 bytes were changing, I guessed that it was coded on 16 bits, and therefore it was easy to correlate the value with the Solar App. Want to k570 if that peripheral is compatible with Linux? We have to disconnect the Logitech Unifying Receiver from the kernel. When pressed, a LED will light up on the keyboard: Here’s the interesting packets that I noticed once I excluded the noise:.


Interfaces loigtech regrouped into a configuration. If so, do you get any indication at all when you plug it in? Find More Posts by JazzyTech.

logitech wireless solar keyboard k

This activity being quite energy consuming, it emptied the whole battery. I’m particularly picky on keyboards, but this one is good. This opens a whole new world.

Keyboard feels very sturdy for something so thin! For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. Find More Posts by tredegar. Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.

Logitech isn’t too good about Linux support, I don’t think.