I want to connect device. How can I connect libusb?

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Hello.
I have questions for MATLAB comunication.
I have a device to connect libusb but I don't know how to connect the device.
Is there any way to connect the device for recieve data?
or
Can I use API CPP code in MATLAB?

回答(1 个)

Shantanu Dixit
Shantanu Dixit 2024-10-29,11:06
编辑:Shantanu Dixit 2024-10-29,11:07
Hi Sang,
USB device can be integrated with MATLAB using a mex file. By doing so, you can execute C/C++ code directly from MATLAB, allowing you to leverage the functionalities of 'libusb' within your MATLAB environment.
You can refer to the below steps as a possible way to connect MATLAB with libusb
  • Install a compatible compiler (Home<Environment<Add-ons<Get Add-ons) and configure the MATLAB to use the compiler by running the command: "mex -setup"
  • Create a C or C++ file that includes 'libusb' and implement the required functionality. Use the mex function signature to interact with MATLAB. Below is a boiler plate code which can be extended to the required functionality.
#include "mex.h"
#include <libusb-1.0/libusb.h>
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) {
libusb_context *ctx = NULL;
int r = libusb_init(&ctx);
if (r < 0) {
mexErrMsgIdAndTxt("MyToolbox:libusb:initFailed",
libusb_error_name(r));
return;
}
// Extend the required functionality
libusb_exit(ctx);
}
  • Compile the mex file: Use the mex command to compile your mex file, specifying the path to 'libusb'
mex -I/path/to/libusb/include -L/path/to/libusb/lib -lusb-1.0 your_mex_file.c
  • The above command will generate a 'mex' file, which can be called like any other MATLAB function
I hope this helps.
For more details, refer to the following MathWorks documentation on mex:

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