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/dev/uhs (view source)

Revision as of 04:42, 7 September 2015

25 bytes added , 04:42, 7 September 2015

→‎0x01 - UhsClassDrvReg(): Callback for UhsClassDrvReg() takes two args, not one

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==ioctl() interface==

===0x01 - UhsClassDrvReg()===

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This function is used to register a USB class driver with UHS. Its input is a 24-byte buffer containing: a context pointer for a callback, the callback itself, and an [[#Interface Filter|interface filter buffer]] containing a series of parameters to filter the interfaces by, such as class, subclass, vendor ID, and product ID. When an interface matching the filter is added to UHS, it will trigger the callback, passing the context to it. The output is simply a 4-byte status code.

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This function is used to register a USB class driver with UHS. Its input is a 24-byte buffer containing: a context pointer for a callback, the callback itself, and an [[#Interface Filter|interface filter buffer]] containing a series of parameters to filter the interfaces by, such as class, subclass, vendor ID, and product ID. When an interface matching the filter is added to UHS, it will trigger the callback, passing the context and an interface profile to it. The output is simply a 4-byte status code.

===0x04 - UhsAcquireInterface()===

Marionumber1

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