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bfin_adv7393: switch to proc_create_data() 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-03-31 15:29:21 -04:00
parent a69755b187
commit ff9046ac92
1 changed files with 19 additions and 24 deletions
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43
drivers/video/bfin_adv7393fb.c
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@ -333,29 +333,23 @@ static int proc_output(char *buf)
return p - buf;
}
static int
adv7393_read_proc(char *page, char **start, off_t off,
int count, int *eof, void *data)
static ssize_t
adv7393_read_proc(struct file *file, char __user *buf,
size_t size, loff_t *ppos)
{
int len;
len = proc_output(page);
if (len <= off + count)
*eof = 1;
*start = page + off;
len -= off;
if (len > count)
len = count;
if (len < 0)
len = 0;
return len;
static const char message[] = "Usage:\n"
"echo 0x[REG][Value] > adv7393\n"
"example: echo 0x1234 >adv7393\n"
"writes 0x34 into Register 0x12\n";
return simple_read_from_buffer(buf, size, ppos, message,
sizeof(message));
}
static int
static ssize_t
adv7393_write_proc(struct file *file, const char __user * buffer,
size_t count, void *data)
size_t count, loff_t *ppos)
{
struct adv7393fb_device *fbdev = data;
struct adv7393fb_device *fbdev = PDE(file_inode(file))->data;
unsigned int val;
int ret;
@ -368,6 +362,12 @@ adv7393_write_proc(struct file *file, const char __user * buffer,
return count;
}
static const struct file_operations fops = {
.read = adv7393_read_proc,
.write = adv7393_write_proc,
.llseek = default_llseek,
};
static int bfin_adv7393_fb_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@ -506,17 +506,12 @@ static int bfin_adv7393_fb_probe(struct i2c_client *client,
fbdev->info.node, fbdev->info.fix.id);
dev_info(&client->dev, "fb memory address : 0x%p\n", fbdev->fb_mem);
entry = create_proc_entry("driver/adv7393", 0, NULL);
entry = proc_create_data("driver/adv7393", 0, NULL, &fops, fbdev);
if (!entry) {
dev_err(&client->dev, "unable to create /proc entry\n");
ret = -EFAULT;
goto free_fb;
}
entry->read_proc = adv7393_read_proc;
entry->write_proc = adv7393_write_proc;
entry->data = fbdev;
return 0;
free_fb: