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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data Rev. 03 — 24 November 2004 33 of 53
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© 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