#Infinity in usb 2 driver serial

Since the device was classified as a USB HID v1.00 Device, the next thought was to try communicating with it via some sort of HID API for developers. It vaguely resembles the garbage that might occur if a baud rate setting is incorrect, but changing baud rate in minicom didn’t do anything.

#Infinity in usb 2 driver serial

We then tried treating it as a serial port using minicom but that didn’t get us much further. Every time we press or release a pedal we get some kind of visual feedback but we don’t understand it. Now we can try treating it as a file with the cat command. This path is owned by root, so further experimentation requires taking ownership of that path to see what we can do with it. The final line also hinted us to a newly visible device under the path /dev/hidraw9.Ĭrw- 1 root root 240, 9 Mar 17 13:32 /dev/hidraw9 It also tells us the device conforms to USB HID (Universal Serial Bus Human Interface Device) specification. So far everything looks in line with the manufacturer’s name we found earlier. usb 1-4.4.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 1-4.4.3: New USB device found, idVendor=05f3, idProduct=00ff usb 1-4.4.3: new low-speed USB device number 17 using xhci_hcd My computer was running Ubuntu at the time, which gave us a starting point with the dmesg tool to see what kind of greeting it has to say to my computer. Without an obvious way forward for nondestructive disassembly, we decided to pause and reassemble the pedal to see if it can be useful intact before we risk destroying it. We could pry them up far enough to see they weren’t obviously hiding screws, but we were wary to apply addition force as it threatened to break apart the plastic housing. The two shiny metal weights were held by tenacious stretchy glue. There were also a few hinge pins that could be removed, but again it allowed additional movement but did not release. There were a few visible plastic clips holding individual pedals in place, but they were only the first line of defense – unclipping them allowed individual pedal to move a little further but did not release them. We see a few springs for the pedals, and two pieces of metal that gave the device its heft.

A box sitting out of sight explained its raised side pedals allowing its user to find them by feel.Ī few screws on the bottom held a plate in place, easily removed. Which explains its mass and durability: this box was designed to sit under a desk and be stepped on. It feels rather beefy and unlikely to physically break.Ī label on the bottom of the device lets us know it is version 14 of the Infinity IN-USB-2 foot pedal.

Each piece can be pressed down and we can feel a tactile click of a switch. It has a respectable heft and doesn’t look damaged or even worn. The center piece takes up majority of width, and two far smaller pieces sitting on either side. A nondescript box with a USB cable, it has three moving parts on top of a heavy base. This SGVHAK teardown project came courtesy of an electronics waste bin.