On 09/22/2015 09:03 PM, sypwex wrote: > On Tue, Sep 22, 2015 at 2:17 PM, Daniel Mack <daniel@xxxxxxxxxx> wrote: >> >> Yes, this device only offers HID and DFU (for firmware updates), so >> you'll have to parse the HID data it produces. >> > > Ok, but device looks like powered off - no flashes on tap and LED > display is blank. When I firstly attach USB cable all buttons flashes > but then it looks like switched off. Everything from that point on is under control of the host software. > On windows when I plug in the device, LED display offers to start up > in MIDI mode (SHIFT+F1) - is it controlled by driver or this is > behavior of firmware? I've personally never used this device, so I can't tell you what they do. You need to sniff the USB traffic the Windows software issues to the device and find out which HID controls they touch in order to set LEDs and issue display commands. IOW: you need to re-engineer the HID mapping. That's tedious, but doable. HTH, Daniel ------------------------------------------------------------------------------ Monitor Your Dynamic Infrastructure at Any Scale With Datadog! Get real-time metrics from all of your servers, apps and tools in one place. SourceForge users - Click here to start your Free Trial of Datadog now! http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
