71 struct io_mock {  struct
72 	void *state;
75 	void (*outb)(void *state, unsigned char value, unsigned short port);
76 	unsigned char (*inb)(void *state, unsigned short port);
78 	void (*outw)(void *state, unsigned short value, unsigned short port);
79 	unsigned short (*inw)(void *state, unsigned short port);
81 	void (*outl)(void *state, unsigned int value, unsigned short port);
82 	unsigned int (*inl)(void *state, unsigned short port);
85 	int (*libusb_init)(void *state, libusb_context **ctx);
86 	int (*libusb_control_transfer)(void *state,
95 	ssize_t (*libusb_get_device_list)(void *state, libusb_context *, libusb_device ***list);
96 	void (*libusb_free_device_list)(void *state, libusb_device **list, int unref_devices);
97 …t (*libusb_get_device_descriptor)(void *state, libusb_device *, struct libusb_device_descriptor *);
98 	int (*libusb_get_config_descriptor)(void *state,
102 	void (*libusb_free_config_descriptor)(void *state, struct libusb_config_descriptor *);
103 	struct libusb_transfer* (*libusb_alloc_transfer)(void *state, int iso_packets);
127 	struct io_mock_fallback_open_state *fallback_open_state;  argument
130 void io_mock_register(const struct io_mock *io);  argument