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Commit 9508e3b7 authored by Mathias Nyman's avatar Mathias Nyman Committed by Greg Kroah-Hartman
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usb: add device descriptor for usb 3.1 root hub 



Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b2316645

drivers/usb/core/hcd.c

+23 −0
Original line number Diff line number Diff line
@@ -128,6 +128,27 @@ static inline int is_root_hub(struct usb_device *udev) 
#define KERNEL_REL	bin2bcd(((LINUX_VERSION_CODE >> 16) & 0x0ff))

#define KERNEL_VER	bin2bcd(((LINUX_VERSION_CODE >> 8) & 0x0ff))



/* usb 3.1 root hub device descriptor */

static const u8 usb31_rh_dev_descriptor[18] = {

	0x12,       /*  __u8  bLength; */

	USB_DT_DEVICE, /* __u8 bDescriptorType; Device */

	0x10, 0x03, /*  __le16 bcdUSB; v3.1 */



	0x09,	    /*  __u8  bDeviceClass; HUB_CLASSCODE */

	0x00,	    /*  __u8  bDeviceSubClass; */

	0x03,       /*  __u8  bDeviceProtocol; USB 3 hub */

	0x09,       /*  __u8  bMaxPacketSize0; 2^9 = 512 Bytes */



	0x6b, 0x1d, /*  __le16 idVendor; Linux Foundation 0x1d6b */

	0x03, 0x00, /*  __le16 idProduct; device 0x0003 */

	KERNEL_VER, KERNEL_REL, /*  __le16 bcdDevice */



	0x03,       /*  __u8  iManufacturer; */

	0x02,       /*  __u8  iProduct; */

	0x01,       /*  __u8  iSerialNumber; */

	0x01        /*  __u8  bNumConfigurations; */

};



/* usb 3.0 root hub device descriptor */

static const u8 usb3_rh_dev_descriptor[18] = {

	0x12,       /*  __u8  bLength; */
@@ -557,6 +578,8 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) 
		case USB_DT_DEVICE << 8:

			switch (hcd->speed) {

			case HCD_USB31:

				bufp = usb31_rh_dev_descriptor;

				break;

			case HCD_USB3:

				bufp = usb3_rh_dev_descriptor;

				break;