static ssize_t usbrh_proc_temp_read(struct file *file,
char *buf, size_t count, loff_t *off)
{
struct usbrh *dev;
struct usbrh_sensor_value value;
int len;
if (*off != 0) {
return 0;
}
len = 0;
dev = (struct usbrh *)PDE_DATA(file_inode(file));
if (usbrh_read_sensor(dev, &value)) {
len += snprintf(buf, count, "Failed to get temperature\n");
*off += len;
return len;
}
len += usbrh_snprint_value(buf, count-len, usbrh_calc_temp(&value));
len += snprintf(buf+len, count-len, "\n");
*off += len;
return len;
}
static int usbrh_proc_temp_read(char *buffer, char **start, off_t offset,
int count, int *peof, void *dat)
{
struct usbrh *dev;
struct usbrh_sensor_value value;
int len;
dev = (struct usbrh *)dat;
*peof = 1;
if (usbrh_read_sensor(dev, &value)) {
return sprintf(buffer, "Failed to get temperature\n");
}
len = usbrh_sprint_value(buffer, usbrh_calc_temp(&value));
len += sprintf(buffer+len, "\n");
return len;
}