On Fri, 17 May 2013, Mathias Nyman wrote:
> Adds abitilty to tune L1 timeout (inactivity timer for usb2 link sleep)
> and BESL (best effort service latency)via sysfs.
>
> This also adds a new usb2_lpm_parameters structure with those variables to
> struct usb_device.
> +static ssize_t
> +set_usb2_lpm_l1_timeout(struct device *dev, struct device_attribute *attr,
> + const char *buf, size_t count)
> +{
> + struct usb_device *udev = to_usb_device(dev);
> + int timeout;
> +
> + if (sscanf(buf, "%d", &timeout) != 1 || timeout < 0 || timeout > 255)
> + return -EINVAL;
New code should use the kstrto* family of functions. You also could
remove a test if you declared timeout to be unsigned instead of int.
Alan Stern
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