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Arrange this page better, putting structures into their own page section
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==ioctl() interface==
==ioctl() interface==
===0x11 - UhsQueryInterfaces()===
===0x11 - UhsQueryInterfaces()===
−This function is used to determine which USB device interfaces are plugged in and available. Its input is a 0x10-byte buffer containing a series of parameters to filter the interfaces by, such as class, subclass, vendor ID, and product ID. The output is an array of 0x16c-byte interface descriptors, one for each interface being read. IOS_Ioctl() with this function returns the number of attached USB interfaces permitted by the filter.
+This function is used to determine which USB device interfaces are plugged in and available. Its input is a [[#Interface Filter|0x10-byte buffer]] containing a series of parameters to filter the interfaces by, such as class, subclass, vendor ID, and product ID. The output is an array of [[#Interface Profile|0x16c-byte interface profiles]], one for each interface being read. IOS_Ioctl() with this function returns the number of attached USB interfaces permitted by the filter.
+==Structures==
+===Interface Filter===
+This structure is passed to several functions to determine which interface profiles to return or handle.
<syntaxhighlight lang="C">
<syntaxhighlight lang="C">
/* Determines which parameters to check */
/* Determines which parameters to check */
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uint8_t if_protocol; /* Interface protocol */
uint8_t if_protocol; /* Interface protocol */
} UhsInterfaceFilter;
} UhsInterfaceFilter;
+</syntaxhighlight>
+===USB Descriptors===
+These are device, configuration, and interface descriptors defined by the USB specification.
+<syntaxhighlight lang="C">
/* USB device descriptor */
/* USB device descriptor */
typedef struct
typedef struct
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uint8_t iInterface;
uint8_t iInterface;
} UhsInterfaceDescriptor;
} UhsInterfaceDescriptor;
+</syntaxhighlight>
+===Interface Profile===
+This structure is used to represent an available device interface attached to the Wii U.
+<syntaxhighlight lang="C">
/* Output buffer */
/* Output buffer */
typedef struct
typedef struct