#include <sys/types.h>#include <sys/fcntl.h>#include <stdlib.h>#include <unistd.h>#include <stdio.h>#include <stdint.h>#include <err.h>#include "libmsr.h"
Include dependency graph for serialio.c:
Functions | |
| int | msr_serial_readchar (int fd, uint8_t *c) |
| Read a single character from the MSR device. More... | |
| int | msr_serial_read (int fd, void *buf, size_t len) |
| Read a series of bytes from the MSR device. More... | |
| int | msr_serial_write (int fd, void *buf, size_t len) |
| Write a series of bytes to the MSR device. More... | |
| int | msr_serial_open (char *path, int *fd, int blocking, speed_t baud) |
| Open a serial connection to the MSR device. More... | |
| int | msr_serial_close (int fd) |
| Close a serial connection to the MSR device. More... | |
Function Documentation
◆ msr_serial_close()
| int msr_serial_close | ( | int | fd | ) |
Close a serial connection to the MSR device.
- Parameters
-
fd The file descriptor to close.
- Returns
- LIBMSR_ERR_OK
◆ msr_serial_open()
| int msr_serial_open | ( | char * | path, |
| int * | fd, | ||
| int | blocking, | ||
| speed_t | baud | ||
| ) |
Open a serial connection to the MSR device.
- Parameters
-
path The path to the serial device. fd The int pointer to store the file descriptor in. blocking The blocking flag (e.g., MSR_BLOCKING) baud The baud rate of the serial device (e.g., MSR_BAUD)
- Returns
- LIBMSR_ERR_OK on success
- LIBMSR_ERR_SERIAL on failure
◆ msr_serial_read()
| int msr_serial_read | ( | int | fd, |
| void * | buf, | ||
| size_t | len | ||
| ) |
Read a series of bytes from the MSR device.
- Parameters
-
fd The file descriptor to read from. buf The buffer to read into. len The length of the buffer.
- Returns
- LIBMSR_ERR_OK
◆ msr_serial_readchar()
| int msr_serial_readchar | ( | int | fd, |
| uint8_t * | c | ||
| ) |
Read a single character from the MSR device.
- Parameters
-
fd The file descriptor to read from. c A pointer to write the character into.
- Returns
- The character read
◆ msr_serial_write()
| int msr_serial_write | ( | int | fd, |
| void * | buf, | ||
| size_t | len | ||
| ) |
Write a series of bytes to the MSR device.
- Parameters
-
fd The file descriptor to write to. buf The buffer to write. len The length of the buffer.
- Returns
- The number of bytes written, or -1 on error.
