W99681CF Datasheet, PDF (28/78 Pages) Winbond – JPEG USB Dual Mode Camera Chip

W99681CF
Table 7.3 Standard Device Requests
bmRequestType
bRequest
00000010B
CLEAR_FEATURE (1)
10000000B
10000000B
GET_CONFIGURATION (8)
GET_DESCRIPTOR (6)
10000001B
10000000B
10000001B
10000010B
00000000B
00000000B
00000000B
00000010B
00000001B
00000010B
GET_INTERFACE (10)
GET_STATUS (0)
SET_ADDRESS (5)
SET_CONFIGURATION (9)
SET_DESCRIPTOR (7)
(Not Supported)
SET_FEATURE (3)
SET_INTERFACE (11)
SYNCH_FRAME (12)
(Not Supported)
wValue wIndex wLength
Data
Feature Endpoint
Selector
Zero
None
(0)
Zero
Zero
One Configurati-
on Value
Descriptor
Type and
Descriptor
Index
Zero or
Language
ID
Descriptor
Length
Descriptor
Zero
Interface
One
(0)
Alternate
Setting
Zero
Zero
Interface
Endpoint
Two
Device,
Interface,
or Endpoint
Status
Device
Address
Zero
Zero
None
Configura
-tion
Value
Zero
Zero
None
Feature
Selector
(0)
Alternate
Setting
Endpoint
Interface
(0)
Zero
Zero
None
None
Clear Feature
The W99681CF supports the following Clear Feature request:
• When directed to an endpoint recipient for ENDPOINT_STALL
The W99681CF returns STALL if any unrecognized or unsupported Clear Feature request is received.
Get Configuration The W99681CF returns zero if it is unconfigured or the bConfiguration value
defined in the Configuration Descriptor is configured.
Get Descriptor
The W99681CF supports Get Descriptor requests for standard descriptors
(Device, Configuration, and String). The W99681CF returns STALL if a Get Descriptor request is
received for a class-specific descriptor or a vendor-specific descriptor, is unrecognized or unsupported.
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