參數(shù)資料
型號: IMAGELINK-50-USB20
廠商: Electronic Theatre Controls, Inc.
英文描述: IMAGELINK-50-USB2.0
中文描述: 圖片鏈接- 50 - USB2.0接口
文件頁數(shù): 9/28頁
文件大?。?/td> 641K
代理商: IMAGELINK-50-USB20
I
MAGE
L
INK
-50
PAGE
9
OF
5
DISTEC GMBH
Industriestrasse 1 D-82110
Germering
30.3.2004/sw1
http://www.distec.de
Tel.: +49-89-89 43 63-0
Fax: +49-89-89 43 63-39
SPECIFICATION
3.1.4 SET_BRIGHTNESS
The SET_BRIGHNESS request is intended to set the actual and stored default brightness
values. The decision which value should be changed is made by the bitmap in the first byte of
wValue.
Request
bmRequest
Type
bRequest wValue
wIndex
wLength
Data
1.
Byte
bitmap
2.
Byte
value
SET_
BRIGHTNESS
bitmap:
b7
reserved
0xC0
0xB3
0x0000
0x0002
0x00B3
b6
reserved
b5
reserved
b4
reserved
b3
reserved
b2
set to
stored
default
value (2)
b1
store
value as
default
(1)
b0
set actual
value (1)
(1) each bit can be set individually or together.
(2) has priority over b0
value:
0 to 255
0 is min brightness
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