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1. Linux Binary To Text
2. Linux Serial Binary Data

Linux Binary To Text

Linux Serial Binary Data

Write is defined as: ssizet write(int fd, const void.buf, sizet count);That is, it sends count bytes to fd from buf. In your case, the data is always the string 'AZTRr', plus undefined data after that (if count is 5). Your program sends neither hexadecimal nor decimal data.Do you want to send binary data or a string of hexadecimal characters?For option one, you can use: write(fd, somebuffer, len);, where some buffer is a pointer to any set of bytes (including ints, etc).For option two, first convert your data to a hexadecimal string using sprintf with%02X as the format string, then proceed to write that data to the port.