华为EC1308机顶盒更改参数教程
华为EC1308机顶盒有几个版本，本方式只适用于采用海思Hi3560V100芯片，且存在设备文件/dev/misc/e2prom_24lc16的机顶盒。用Telnet登录机顶盒，执行下面的命令：
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修改参数程序源代码如下：
#include <fcntl.h>
#include <malloc.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <string.h>
typedef struct {
unsigned int e2prom_cmd_sub_addr;
unsigned int sub_addr_count;
unsigned char* e2prom_cmd_data;
unsigned int data_count;
} e2prom_s_cmd;
#define E2PROM_CMD_READ 1
#define E2PROM_CMD_WRITE 2
#define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
static int readparam(unsigned char *mac, unsigned char *stbid)
{
int fd, ret;
e2prom_s_cmd arg;
unsigned char buf;
fd = open(E2PROM_DEVICE, O_RDWR);
if (fd< 0) {
printf("Device %s open error.\n", E2PROM_DEVICE);
return -1;
}
arg.sub_addr_count = 2;
arg.data_count = 0x18;
arg.e2prom_cmd_sub_addr = 0x290;
arg.e2prom_cmd_data = buf;
ret = ioctl(fd, E2PROM_CMD_READ, &arg);
if (ret != 0) {
printf("Device %s read error.\n", E2PROM_DEVICE);
return -1;
}
memcpy(mac, buf, 6);
memcpy(stbid, &buf, 18);
stbid = '\0';
return 0;
}
static int writeparam(unsigned char *mac, unsigned char *stbid)
{
int fd, ret;
e2prom_s_cmd arg;
unsigned char buf;
memcpy(buf, mac, 6);
memcpy(&buf, stbid, 18);
fd = open(E2PROM_DEVICE, O_RDWR);
if (fd< 0) {
printf("Device %s open error.\n", E2PROM_DEVICE);
return -1;
}
arg.sub_addr_count = 2;
arg.data_count = 0x18;
arg.e2prom_cmd_sub_addr = 0x290;
arg.e2prom_cmd_data = buf;
ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
if (ret != 0) {
printf("Device %s write error.\n", E2PROM_DEVICE);
return -1;
}
return 0;
}
int main()
{
char c;
int i, macs;
unsigned char mac;
unsigned char stbid;
if (readparam(mac, stbid) < 0)
return 1;
printf("Current parameters: \n");
printf("MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac, mac, mac, mac, mac, mac);
printf("STBID: %s\n", stbid);
printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs, &macs, &macs, &macs, &macs, &macs) != 6) {
printf("Input MAC error\n");
return 1;
}
for (i=0; i<6; i++)mac = macs;
printf("\nPlease input new STBID: ");
scanf("%s", stbid);
if (strlen(stbid) != 18) {
printf("Invalid stbid\n");
return 1;
}
printf("\nNew parameters: \n");
printf("MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac, mac, mac, mac, mac, mac);
printf("STBID: %s\n", stbid);
printf("\nDo you want to change paramemters? (y/N) ");
for (;;) {
c = getchar();
if (c == 'y' || c == 'Y')
break;
if (c == 'n' || c == 'N') {
printf("\nAborted.\n");
return 1;
}
}
if (writeparam(mac, stbid) == 0)
printf("Parameters changed.\n");
return 0;
}
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