Backend interface

Layer over OS-dependent I/O interface. More...

Classes
struct	PtpDeviceEntry
	Linked-list entry for a single USB device. More...

Functions
struct PtpDeviceEntry *	ptpusb_device_list (struct PtpRuntime *r)
	Get a linked list of USB or PTP Devices.
void	ptpusb_free_device_list (struct PtpDeviceEntry *e)
	Frees the device entry linked list.
int	ptp_device_open (struct PtpRuntime *r, struct PtpDeviceEntry *entry)
	Open and connect to a device from the PtpDeviceEntry structure.
int	ptp_device_connect (struct PtpRuntime *r)
	Connects to the first PTP device it finds.
int	ptp_cmd_write (struct PtpRuntime *r, void *to, unsigned int length)
	Send data over the raw command endpoint for USB backend.
int	ptp_cmd_read (struct PtpRuntime *r, void *to, unsigned int length)
	Receive raw data over the command endpoint for USB backend.
int	ptp_device_reset (struct PtpRuntime *r)
	Reset the USB endpoints if possible.
int	ptp_send_packet (struct PtpRuntime *r, unsigned int length)
	Send packets in r->data.
int	ptp_receive_all_packets (struct PtpRuntime *r)
	Receive all packets into r->data.
int	ptp_read_int (struct PtpRuntime *r, void *to, unsigned int length)
	Poll the interrupt endpoint.
int	ptp_device_close (struct PtpRuntime *r)
	Disconnect from the current device.
int	ptpip_connect (struct PtpRuntime *r, const char *addr, int port, int extra_tmout)
	Connect to a TCP port on the default network adapter.
int	ptpip_cmd_write (struct PtpRuntime *r, void *data, unsigned int size)
	Send data over the raw command endpoint for USB backend.
int	ptpip_cmd_read (struct PtpRuntime *r, void *data, unsigned int size)
	Receive raw data over the command endpoint for USB backend.
int	ptpip_connect_events (struct PtpRuntime *r, const char *addr, int port)
	Connect PTP/IP event socket. Port depends on implementation.
int	ptpip_event_send (struct PtpRuntime *r, void *data, unsigned int size)
int	ptpip_event_read (struct PtpRuntime *r, void *data, unsigned int size)
int	ptpip_device_close (struct PtpRuntime *r)
	Disconnect from a PTP/IP device.
void	ptpusb_free_device_list_entry (void *)
	Backend must implement this to free the device_handle_ptr field in each device entry.
int	ptpusb_get_status (struct PtpRuntime *r)
	Get status of currently connected device This is a quick and cheap way to check if the connection is still established, which can be used if there isn't a vendor event polling mechanism.
int	ptp_comm_init (struct PtpRuntime *r)
	Initializes backend context.
void	ptp_comm_deinit (struct PtpRuntime *r)
	Deinits backend and frees all memory.
	__attribute__ ((deprecated)) __attribute__((unused)) static int ptp_device_init(struct PtpRuntime *r)

Detailed Description

Layer over OS-dependent I/O interface.

Function Documentation

__attribute__()

__attribute__

(

(deprecated)

)

Definition at line 93 of file cl_backend.h.

ptp_comm_init()

int ptp_comm_init

(

struct PtpRuntime *

r

)

Initializes backend context.

Note

On Windows this may run CoInitialize on the current thread

ptp_device_open()

int ptp_device_open	(	struct PtpRuntime *	r,
		struct PtpDeviceEntry *	entry )

Open and connect to a device from the PtpDeviceEntry structure.

Note

Sets kill switch to 0

ptpip_connect()

int ptpip_connect	(	struct PtpRuntime *	r,
		const char *	addr,
		int	port,
		int	extra_tmout )

Connect to a TCP port on the default network adapter.

Note

Sets kill switch to 0

ptpusb_device_list()

struct PtpDeviceEntry * ptpusb_device_list

(

struct PtpRuntime *

r

)

Get a linked list of USB or PTP Devices.

Returns

linked list of devices or NULL if no devices are connected (or OS error)