how can i know that the connected device is class complaint for MIDI (Ex; for a yamaha keyboard) (i'm trying to connect arduino directly to a usb midi keyboard)
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in linux you can use lsusb -v the device class is in the bDeviceClass field. if it says 0 (Defined at Interface level) see the bInterfaceClass fields. MIDI devices have their own USB class cf. http://www.usb.org/developers/docs/devclass_docs/midi10.pdf
on your arduino has to run a kernel module- / driver-like program that enables communication with the USB midi device, because this communication is standardized ( http://www.beyondlogic.org/usbnutshell/usb1.shtml )
on windows you can use tools like USBView to get the information about the USB class ... https://learn.microsoft.com/en-us/windows-hardware/drivers/debugger/usbview
ralf htp
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do i have to run lsusb -v in the terminal – nuwan karunarathna Mar 16 '18 at 09:34
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yes in linux. if you want to run this in a C program see https://stackoverflow.com/questions/646241/c-run-a-system-command-and-get-output – ralf htp Mar 16 '18 at 17:48