2024年5月11日发(作者：)

S3C2410_

最近在做LED的驱动程序，编译出现很多问题。出现问题的代码如下：

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#include

#define DEVICE_NAME "leds"

static unsigned long led_table [] = {

S3C2410_GPB5,

S3C2410_GPB6,

S3C2410_GPB7,

S3C2410_GPB8,

};

static unsigned int led_cfg_table [] = {

S3C2410_GPB5_OUTP,

S3C2410_GPB6_OUTP,

S3C2410_GPB7_OUTP,

S3C2410_GPB8_OUTP,

};

static int sbc2440_leds_ioctl(

struct inode *inode,

struct file *file,

unsigned int cmd,

unsigned long arg)

{

switch(cmd) {

case 0:

case 1:

if (arg > 4) {

return -EINVAL;

}

s3c2410_gpio_setpin(led_table[arg], !cmd);

return 0;

default:

return -EINVAL;

}

}

static struct file_operations dev_fops = {

.owner = THIS_MODULE,

.ioctl = sbc2440_leds_ioctl,

};

static struct miscdevice misc = {

.minor = MISC_DYNAMIC_MINOR,

.name = DEVICE_NAME,

.fops = &dev_fops,

};

static int __init dev_init(void)

{

int ret;

int i;

for (i = 0; i < 4; i++) {

s3c2410_gpio_cfgpin(led_table[i], led_cfg_table[i]);

s3c2410_gpio_setpin(led_table[i], 0);

}

ret = misc_register(&misc);

printk (DEVICE_NAME"tinitializedn");

return ret;

}

static void __exit dev_exit(void)

{

misc_deregister(&misc);

}

module_init(dev_init);

module_exit(dev_exit);

MODULE_LICENSE("GPL");

MODULE_AUTHOR("FriendlyARM Inc.");

编译make ARCH=arm CROSS_COMPILE=arm-linux-，出现错误：

e/guoqian/4.3.1/linux-2.6.32.2 M=/home/guoqian/led modules ARCH=arm CROSS_COMPILE=arm-linux-

make[1]: Entering directory `/home/guoqian/4.3.1/linux-2.6.32.2'

CC [M] /home/guoqian/led/mini2440_leds.o

/home/guoqian/led/mini2440_leds.c:29: error: 'S3C2410_GPB5' undeclared here (not in a function)

/home/guoqian/led/mini2440_leds.c:30: error: 'S3C2410_GPB6' undeclared here (not in a function)

/home/guoqian/led/mini2440_leds.c:31: error: 'S3C2410_GPB7' undeclared here (not in a function)

/home/guoqian/led/mini2440_leds.c:32: error: 'S3C2410_GPB8' undeclared here (not in a function)

/home/guoqian/led/mini2440_leds.c:36: error: 'S3C2410_GPB5_OUTP' undeclared here (not in a function)

/home/guoqian/led/mini2440_leds.c:36: error: initializer element is not constant

/home/guoqian/led/mini2440_leds.c:36: error: (near initialization for 'led_cfg_table[0]')

/home/guoqian/led/mini2440_leds.c:37: error: 'S3C2410_GPB6_OUTP' undeclared here (not in a function)

/home/guoqian/led/mini2440_leds.c:37: error: initializer element is not constant

/home/guoqian/led/mini2440_leds.c:37: error: (near initialization for 'led_cfg_table[1]')

/home/guoqian/led/mini2440_leds.c:38: error: 'S3C2410_GPB7_OUTP' undeclared here (not in a function)

/home/guoqian/led/mini2440_leds.c:38: error: initializer element is not constant

/home/guoqian/led/mini2440_leds.c:38: error: (near initialization for 'led_cfg_table[2]')

/home/guoqian/led/mini2440_leds.c:39: error: 'S3C2410_GPB8_OUTP' undeclared here (not in a function)

/home/guoqian/led/mini2440_leds.c:39: error: initializer element is not constant

/home/guoqian/led/mini2440_leds.c:39: error: (near initialization for 'led_cfg_table[3]')