VXWORKS USB DRIVER DETAILS:
|File Size:||10.8 MB|
|Supported systems:||Windows 10, 8.1, 8, 7, 2008, Vista, 2003, XP|
|Price:||Free* (*Free Registration Required)|
VXWORKS USB DRIVER
Correction Algorithm of USB Touch Screen Driver in vxWorks
The touch screen control method is simple, efficient and easy to realize. Authors: Hong Yan Kang.
Moore's Law is not Dead. See Table for the list of standard requestType values.
The target application calls the appropriate interface exposed by the target layer, depending upon whether the request is to set or clear. If the host requests to clear a halt condition on the endpoint, the target application calls the usbTargPipeStatusSet routine. If the host requests vxworks usb clear a device-specific feature, the target application calls usbTargDeviceFeatureClear routine.
If the vxworks usb requests to set the halt condition vxworks usb the endpoint, the target application calls usbTargPipeStatusSet routine. If the host requests to set a device specific feature, the target application calls usbTargDeviceFeatureSet routine. If the target application supports these functions, it clears or sets the feature identified by the feature and index parameters. Table lists the valid feature values.
VxWorks development Device drivers Maven Systems, India
Feature Selector Recipient Feature Value. If the recipient of the request, as shown in Tableis a device, the index parameter is 0; if the recipient is an endpoint, then index is the address of that endpoint. In the configurationGet callback, the target application fills the pConfiguration buffer with a UINT8 value that matches the configuration value in the current configuration descriptor. On return from configurationGetthe target vxworks usb transmits this configuration information back to the USB host.
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If the device is in the vxworks usb state that is, if the device address is 0the target application returns ERROR from configurationGet. In the configurationSet callback, the target application sets the current configuration to the one indicated by the configuration value, assuming the value matches with a valid configuration descriptor. If the configuration value is invalid, or if the device is in the default state, the target application returns ERROR from configurationSet.
The requestType, descriptorType, descriptorIndex, and languageId parameters identify the descriptor. Request Type Numerical Value. Table lists the valid descriptorType values the descriptorIndex specifies a descriptor when multiple descriptors of the vxworks usb type are implemented on vxworks usb device. Descriptor Type Numerical Value.
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In the descriptorGet callback, the target application fills pBfr with the requested descriptor truncated if it is larger than the buffer size, which is specified by. The target application also sets pActLen to the actual length of the descriptor placed in pBfr. The target layer transmits the descriptor back to the USB host. If the target application does not support the requested descriptor, it returns ERROR vxworks usb this vxworks usb, which triggers a request error.
The length parameter indicates the length of the descriptor that the host will send in the data 5 stage, as specified in the setup packet. Vxworks usb descriptorSet callback sets pActLen to the actual length of the descriptor that it set. In the interfaceGet callback, the target application stores the alternate interface setting of the interface specified by interface in the variable pAlternateSetting.
In the interfaceSet callback the target application sets the alternate setting of the interface specified by interface to the setting specified in alternateSetting. The target application returns ERROR from interfaceSet vxworks usb the device is in the default or the addressed state or if the alternate setting is invalid. If the target application supports this callback, it stores the status of the recipient identified by requestType in pBfr.It explains how to use the Wind River USB peripheral vxworks usb to create new target applications and target controller drivers. This manual assumes. Course Overview.
This course provides engineers with a vxworks usb they can use to load and boot VxWorks from a USB stick on a target board with an Intel.