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usb: add support for microsoft os descriptors

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This patch adds support for special usb descriptors used by microsoft
windows.  They allow more fine-grained control over driver binding and
adding entries to the registry for configuration.

As this is a guest-visible change the "msos-desc" compat property
has been added to turn this off for 1.7 + older

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2013-11-20 07:32:31 +01:00
parent 1cf892ca26
commit 5319dc7b42
9 changed files with 297 additions and 6 deletions
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3
include/hw/usb.h
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@ -182,6 +182,7 @@ typedef struct USBDescIface USBDescIface;
typedef struct USBDescEndpoint USBDescEndpoint;
typedef struct USBDescOther USBDescOther;
typedef struct USBDescString USBDescString;
typedef struct USBDescMSOS USBDescMSOS;
struct USBDescString {
uint8_t index;
@ -208,6 +209,8 @@ struct USBEndpoint {
enum USBDeviceFlags {
USB_DEV_FLAG_FULL_PATH,
USB_DEV_FLAG_IS_HOST,
USB_DEV_FLAG_MSOS_DESC_ENABLE,
USB_DEV_FLAG_MSOS_DESC_IN_USE,
};
/* definition of a USB device */