Blink2 Protocol

Mostly control messages...

	(control <read/write> bRequest, wValue, wIndex -> buf[wLength])

Get Firmware ID:
	control read 0x18, 0x03, 0x00	-> buf[6]

	Gets the firmware id.


Number of Pictures:
	control read 0x8, 0x03, 0x00	-> buf[2] (high, low byte)

	Gets number of pictures.

Get Directory:
	control read 0x0d, 0x03, 0x00	-> buf[1] 
	bulk read  (((8*(1+numpics))+0x3f) & ~0x3f) bytes.

	Buffer has now: 
	i = 0 .. numpics:
		buf[8*(i+1)]	- movie flag
		buf[8*(i+1)+5 ... 7]	- 3 bytes start, MSB first
		buf[8*(i+1)+13 ... 15]	- 3 bytes end, MSB first

	Gets the directory entries.


Get Memory:
	Prepare buffer as:
		buf[0..4]	start	(MSB first)
		buf[5..7]	length	(MSB first)

	control write 0x0a, 0x03, 0x00, buf[8]
	bulk read (length)

	Gets the memory (imagedata) as specified.


Capture Picture:
	control read 0x0e, 0x03, 0x00	-> buf[1]
	do 
		control read 0x16, 0x03, 0x00 -> buf[1]
	while buf[0] == 0

	Afterwards the image is in the camera memory.



Delete All Images:
	control read 0x12, 0x03, 0x00	-> buf[1]

	All images on the camera are deleted.


Delete Last Image:
	control read 0x11, 0x03, 0x00	-> buf[1]

	Last image on camera is deleted.


Start Video:
	control read 0x4, 0x01, 0x00	-> buf[1]

	This starts the ISO transfers I suspect?


Current Video Position (??):
	control read 0x7, 0x00, 0x00	-> buf[2]

	Unclear, I think it returns amount of data read in buf[2].


Initialize Still Mode:
	control read 0x4, 0x03, 0x00	-> buf[1]


Hmm (?) / Resync Routine:
	control read 0x13, 0x0, 0x00	-> buf[1]


Bandwith Allocate(type):
	320x240: control read 0x14, 0x0, 0x00	-> buf[1]
	640x480: control read 0x15, 0x0, 0x00	-> buf[1]

	I think this is for ISO transfers, started by 0x04,0x01.
	You need to change the interface accordingly.


Set Exposure Count(value):
	control read 0x17, 0x03, value	-> buf[1]
	Unclear.


Set Compression(value):
	control read 0x1b, 0x03, value	-> buf[1]
	Unclear.


Set Whitebalance(value):
	control read 0x1d, 0x03, value	-> buf[1]
	Unclear.


Set Still Quality(value):
	control read 0x1a, 0x03, value	-> buf[1]
	Unclear.


Set Flare(value)
	control read 0x19, 0x03, value	-> buf[1]
	Unclear.


Internal Driver Properties:
	ID	Name		Range	Default
	0x01	Brightness	0-50	43
	0x03	Sharpness	0-255	20
	0x08	Saturation	0-128	128
	0x0b	Whitebalance	0-7	7
	0x0c	Gamma		0-11	9
	0x0d	Backlight	0-1	0
	0x0e	Contrast ?	0-14	7