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authorAlexey Dobriyan <adobriyan@gmail.com>2008-06-03 15:21:21 -0700
committerDavid S. Miller <davem@davemloft.net>2008-06-03 15:21:21 -0700
commit399dc43bc29fe1ac19340c56c0df84aa0ea53c85 (patch)
treef1d97d050aa87a1ea9212e57c0f6b62f8dab0831 /arch/sparc/kernel/led.c
parentfbaa20f66a8283359523dfe961ebe66f0b8fac59 (diff)
downloadop-kernel-dev-399dc43bc29fe1ac19340c56c0df84aa0ea53c85.zip
op-kernel-dev-399dc43bc29fe1ac19340c56c0df84aa0ea53c85.tar.gz
sparc: switch /proc/led to seq_file
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/led.c')
-rw-r--r--arch/sparc/kernel/led.c34
1 files changed, 21 insertions, 13 deletions
diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c
index 59e9344..adaaed4 100644
--- a/arch/sparc/kernel/led.c
+++ b/arch/sparc/kernel/led.c
@@ -2,6 +2,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/jiffies.h>
#include <linux/timer.h>
@@ -45,21 +46,22 @@ static void led_blink(unsigned long timeout)
add_timer(&led_blink_timer);
}
-static int led_read_proc(char *buf, char **start, off_t offset, int count,
- int *eof, void *data)
+static int led_proc_show(struct seq_file *m, void *v)
{
- int len = 0;
-
if (get_auxio() & AUXIO_LED)
- len = sprintf(buf, "on\n");
+ seq_puts(m, "on\n");
else
- len = sprintf(buf, "off\n");
+ seq_puts(m, "off\n");
+ return 0;
+}
- return len;
+static int led_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, led_proc_show, NULL);
}
-static int led_write_proc(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
+static ssize_t led_proc_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
{
char *buf = NULL;
@@ -103,6 +105,15 @@ static int led_write_proc(struct file *file, const char __user *buffer,
return count;
}
+static const struct file_operations led_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = led_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = led_proc_write,
+};
+
static struct proc_dir_entry *led;
#define LED_VERSION "0.1"
@@ -112,12 +123,9 @@ static int __init led_init(void)
init_timer(&led_blink_timer);
led_blink_timer.function = led_blink;
- led = create_proc_entry("led", 0, NULL);
+ led = proc_create("led", 0, NULL, &led_proc_fops);
if (!led)
return -ENOMEM;
-
- led->read_proc = led_read_proc; /* reader function */
- led->write_proc = led_write_proc; /* writer function */
led->owner = THIS_MODULE;
printk(KERN_INFO
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