SPECIFICATION
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3.1.2 SET_BKL
The SET_BKL request is intended to switch the backlight ON/OFF.
Request
bmRequest
Type
bRequest
wValue
wIndex
wLength
Data
SET_BKL
0xC0
0xB1
1.
2.
Byte
Byte
bitmap value 0x0000
0x0002
0x00B1
bitmap:
b7
b6
b5
b4
reserved
reserved
reserved
reserved
0
0
0
0
each bit can be set individually or together.
value:
0=OFF
1=ON
b3
reserved
0
b2
reserved
0
b1
reserved
0
b0
set actual
value
3.1.3 GET_BRIGHTNESS
The GET_BRIGHTNESS is intended to determine the brightness value. It can query the actual
and the stored default values.
Request
bmReques
t Type
bRequest
wValue
wIndex
wLength
Data
1.
2.
Byte Byte
value 0xB2
GET_BRIGHTNESS
mode:
0xC0
0xB2
mode
0x0000
0x0002
0: get actual value
1: get stored default value
value:
0 to 255
0 is min brightness
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
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