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usb: Added support for Interface Association descriptors.

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This commit is contained in:
Gareth McMullin
2011-12-28 21:04:36 +13:00
parent 651917aeb4
commit 0731bba610
2 changed files with 30 additions and 1 deletions
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19
include/libopencm3/usb/usbstd.h
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@@ -75,6 +75,10 @@ struct usb_setup_data {
#define USB_DT_DEVICE_QUALIFIER 6
#define USB_DT_OTHER_SPEED_CONFIGURATION 7
#define USB_DT_INTERFACE_POWER 8
/* From ECNs */
#define USB_DT_OTG 9
#define USB_DT_DEBUG 10
#define USB_DT_INTERFACE_ASSOCIATION 11
/* USB Standard Feature Selectors - Table 9-6 */
#define USB_FEAT_ENDPOINT_HALT 0
@@ -134,6 +138,7 @@ struct usb_config_descriptor {
/* Descriptor ends here. The following are used internally: */
const struct usb_interface {
int num_altsetting;
const struct usb_iface_assoc_descriptor *iface_assoc;
const struct usb_interface_descriptor *altsetting;
} *interface;
} __attribute__((packed));
@@ -201,4 +206,18 @@ struct usb_string_descriptor {
u16 wData[];
} __attribute__((packed));
/* From ECN: Interface Association Descriptors, Table 9-Z */
struct usb_iface_assoc_descriptor {
u8 bLength;
u8 bDescriptorType;
u8 bFirstInterface;
u8 bInterfaceCount;
u8 bFunctionClass;
u8 bFunctionSubClass;
u8 bFunctionProtocol;
u8 iFunction;
} __attribute__((packed));
#define USB_DT_INTERFACE_ASSOCIATION_SIZE \
sizeof(struct usb_iface_assoc_descriptor)
#endif