On Mon, 19 Mar 2012, Lan Tianyu wrote:
> Check the connect type of usb port when getting the usb port's
> acpi_handle and store result into connect_type in the struct
> usb_hub_port.
>
> Accoding to ACPI Spec 9.13. PLD indicates whether usb port is
> user visible and _UPC indicates whether it is connectable. If
> the port was visible and connectable, it could be freely connected
> and disconnected with USB devices. If no visible and connectable,
> a usb device is directly hard-wired to the port. If no visible and
> no connectable, the port would be not used.
>
> When a device was found on the port, if the connect_type was hot-plug,
> then the device would be removable. If the connect_type was hard-wired,
> the device would be non-removable.
> @@ -132,7 +133,7 @@ MODULE_PARM_DESC(initial_descriptor_timeout,
> *
> * For maximum flexibility there are two boolean parameters to control the
> * hub driver's behavior. On the first initialization attempt, if the
> - * "old_scheme_first" parameter is set then the old scheme will be used,
> +.iiies * "old_scheme_first" parameter is set then the old scheme will be used,
This is a typo.
> * otherwise the new scheme is used. If that fails and "use_both_schemes"
> * is set, then the driver will make another attempt, using the other scheme.
> */
> @@ -4174,3 +4175,27 @@ int usb_get_hub_port_platform_data(struct usb_device *udev, int port,
> *data = hub->port_data[port - 1].platform_data;
> return 0;
> }
> +
> +int usb_set_hub_port_connect_type(struct usb_device *hdev, int port,
> + enum usb_port_connect_type type)
The parameter should be called "port1", not "port".
> +{
> + struct usb_hub *hub = hdev_to_hub(hdev);
> +
> + if (port > hub->descriptor->bNbrPorts || port < 1)
Use hdev->maxchild instead of hub->descriptor->bNbrPorts. Same in
usb_get_hub_port_connect_type().
> --- a/drivers/usb/core/usb-acpi.c
> +++ b/drivers/usb/core/usb-acpi.c
> @@ -19,58 +19,57 @@
>
> #include "usb.h"
>
> -static int usb_acpi_check_upc(struct usb_device *udev, acpi_handle handle)
> +static int usb_acpi_check_port_connect_type(struct usb_device *hdev,
> + acpi_handle handle, int port)
port1, not port.
Alan Stern
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