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ODROID-COMMON: Add function for input data to sysnode.

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Signed-off-by: steve.jeong <jkhpro1003@gmail.com>
Change-Id: I7a1c6b82f8461b78aa5f9616531f9e2ae08c0fd3
This commit is contained in:
steve.jeong
2022-11-29 10:41:34 +09:00
parent 3554417c94
commit ae8438fb70
2 changed files with 27 additions and 0 deletions
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24
wiringPi/wiringPi.c
View File

@@ -27,6 +27,7 @@
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <asm/ioctl.h>
/*----------------------------------------------------------------------------*/
@@ -264,6 +265,29 @@ void setUsingGpiomem(const unsigned int value)
libwiring.usingGpiomem = value;
}
/*----------------------------------------------------------------------------*/
/*
* input data to sys node.
*/
/*----------------------------------------------------------------------------*/
int inputToSysNode (const char* sysPath, const char* node, char* data) {
char dest[(BLOCK_SIZE * 2)];
FILE *fd;
memset(dest, 0, sizeof(dest));
sprintf(dest, "%s/%s", sysPath, node);
if((fd = fopen(dest, "w")) == NULL) {
printf("Invalid sysnode path\n");
return -1;
}
fprintf(fd, "%s\n", data);
fclose(fd);
return 0;
}
/*----------------------------------------------------------------------------*/
/*
* setKernelVersion:

3
wiringPi/wiringPi.h
View File

@@ -342,6 +342,9 @@ extern unsigned int digitalReadByte2 (void) UNU;
extern void digitalWriteByte (int value) UNU;
extern void digitalWriteByte2 (int value) UNU;
// sys node
extern int inputToSysNode (const char* sysPath, const char* node, char* data);
#ifdef __cplusplus
}
#endif