Car Audio Bin service manual for Gelhard GXR 254 DR
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at 12:33Yes, the electrical ctriacteaishrcs for USB devices seem to be a bit painful. I personally used 1/4 W spec'd zeners, and they've been working nicely.Hopefully you'll get it working!Hajoe says:August 13, 2012 at 20:20OK with a 1/2w Diode it did show up a lot more consistently withls it showsBus 005 Device 002: ID 4242:e131 USB Design by Example and with dmesg [ 2423.440101] usb 5-2: new low speed USB device using uhci_hcd and address 2[ 2423.682894] input: codeandlife.com Passgen as /devices/pci0000:00/0000:00:1d.0/usb5/5-2/5-2:1.0/input/input10[ 2423.683163] generic-usb 0003:4242:E131.0001: input,hidraw0: USB HID v1.01 Keyboard [codeandlife.com Passgen] on usb-0000:00:1d.0-2/input0[ 2423.683206] usbcore: registered new interface driver usbhid[ 2423.683211] usbhid: USB HID core driverbut no message at the caps tap and no password entry after that. I went through the code line by line but no reason for it to not work after that. My question is, is there another way to see what the device is doing once its connected and registered into the system?jokkebk says:August 15, 2012 at 21:37Nice to hear. If I recall correctly, someone got even better result with 1/4W zeners.I haven't used AVR 1-wire debugging so I don't know if that could be used to see what happens, and if it would work in this case. One option is to add a LED and turn it on and off at given points, that might give you an idea where the execution goes (e.g. if you light the LED and turn it off when you reach main loop, you'll see if it turns off ).Also, there's a possibility that Linux doesn't send caps lock to the device like windows does. I know OS X doesn't Good luck with your efforts!
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