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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data
Rev. 03 — 24 November 2004
33 of 53
9397 750 13702
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12.4 Various get descriptors
bmRequestType — 10000000B
bmRequest — GET_DESCRIPTOR = 6
2
suspend change
0
no change
1
resume complete
3
overcurrent indicator change
0
no change in the overcurrent indicator
1
change in the overcurrent indicator
4
reset change
0
no change
1
reset complete
5 to 15
reserved
0
-
Table 32:
Get port status change response (wPortChange)
…continued
Bit
Function
Value
Description
Table 33:
Get descriptor request
Request name
wValue
wIndex
Data
Descriptor index
Descriptor type
Zero/Language ID
Get device
descriptor
00
01
0
device descriptor
Get configuration
descriptor
00
02
0
configuration interface and
endpoint descriptors
Get language ID
string descriptor
00
03
0
language ID support string
Get manufacturer
string descriptor
01
03
n
manufacturer string in LANGID n
Get product string
descriptor
02
03
n
product string in LANGID n
Get serial number
string descriptor
03
03
n
serial number string in LANGID n