_t *f_pos
){
loff_t pos;
pos = *f_pos;
if ((pos==4096) || (count>4096)) return 0;
pos += count;
if (pos > 4096) {
count -= (pos - 4096);
pos = 4096;
}
if (copy_from_user(asdf_body+*f_pos, buf, count)) return -EFAULT;
*f_pos = pos;
return count;
}
static loff_t
asdf_lseek /* lseek回调 */
(
struct file * file,
loff_t offset,
int orig
){
loff_t p页码：[1] [2] [3] [4] [5] 第3页、共5页 |
