diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2015-12-10 09:59:28 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-01-24 20:16:52 -0800 |
| commit | 9508e3b7a70c11370d70252147b75d3024754970 (patch) | |
| tree | bb12807c0384390b2a191594469dc1f6eb346298 /drivers/usb/core/hcd.c | |
| parent | b2316645ca5ea93eb8f637f57199fbbe88bee07d (diff) | |
usb: add device descriptor for usb 3.1 root hub
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/hcd.c')
| -rw-r--r-- | drivers/usb/core/hcd.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index ff3073d522a8..bca13a0e0326 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -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; |