參數(shù)資料
型號： W9968CF
英文描述： Digital Camera
中文描述： 數(shù)碼相機(jī)
文件頁數(shù)： 29/78頁
文件大小： 814K
代理商： W9968CF
W9968CF
Publication Release Date: May 1999
- 29 - Revision A2
Get Interface
selected alternate setting. The default alternate setting is zero. The W9968CF returns STALL for a Get
Interface request for any other Interface or any Get Interface request before the Device is configured.
The W9968CF supports a Get Interface request for Interface 0 by returning the
Get Status
defined endpoint (default or Video Data-In). The W9968CF returns STALL if a Get Status request is
received for Interface 0 or any defined endpoint before the Device is configured, or if a Get Status
request is received for any unrecognized or unsupported recipient.
The W9968CF supports a Get Status directed at the device, Interface 0, or any
Set Address
from the default address (zero) to a unique address.
The W9968CF supports a Set Address request to change the Device Address
Set Configuration
Configuration to zero (unconfigured) or the bConfiguration value defined in the Configuration Descriptor.
The W9968CF returns STALL if a Set Configuration request is received with any other value.
The W9968CF supports Set Configuration requests to set the Device
Set Descriptor
Configuration, Interface, Endpoint, or String). It returns STALL for any Set Descriptor request.
The W9968CF does not support update for any defined Descriptor (Device,
Clear Feature
The W9968CF supports the following Set Feature request:
When directed to an endpoint recipient for ENDPOINT_STALL
The W9968CF returns STALL if any unrecognized or unsupported Set Feature request is received.
Set Interface
for defined Alternate Settings. This request allows the host to select the desired alternate setting. The
W9968CF returns STALL for any other Set Interface request.
When configured, the W9968CF supports a Set Interface request to Interface 0
Synch Frame
The W9968CF returns STALL for any Synch Frame request.
7.4.2.2 Video Camera Class-Specific Requests
Currently, there is no class-specific request is defined for the video camera devices. The W9968CF
returns STALL for any class-specific request.
7.4.2.3 Vendor-Specific Requests
The W9968CF supports two vendor-specific requests for the control registers In/Out transfers on the
default pipe (Endpoint 0): Get W9968CF Control and Set W9968CF Control. The vendor-specific
requests defined for the W9968CF are shown in Table 7.4. The W9968CF returns STALL if an
unrecognized or unsupported vendor-specific request is received.
Table 7.4 W9968CF Vendor-Specific Requests
bmRequestType
bRequest
wValue
wIndex
wLength
Data
11000000B
GET_W9968CF_CONTROL (1)
Zero
Data0
3
ndex
1
ndex
1
Length
2
Length
2
Data
01000000B
Note 1. Index specifies the starting index of the control registers to be accessed. An index counter,
SET_W9968CF_CONTROL (0)
Data
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