TAILIEUCHUNG - USB Complete fourth- P35

USB Complete fourth- P35:This book focuses on Windows programming for PCs, but other computers and operating systems also have USB support, including Linux and Apple Computer’s Macintosh. Some real-time kernels also support USB. | Chapter 13 Table 13-1 Applications can use these API functions to obtain information about a HID and its reports. Function Purpose HidD_FreePreparsedData Free resources used by HidD_GetPreparsedData. HidD_GetAttributes Retrieve a pointer to a structure containing the HID s Vendor ID Product ID and device release number. HidD_GetPhysicalDescriptor1 Retrieve a physical descriptor. HidD_GetPreparsedData Return a handle to a buffer with information about the HID s reports. HidP_GetButtonCaps Retrieve an array with information about the buttons in a top-level collection for a specified report type. HidP_GetCaps Retrieve a structure describing a HID s reports. HidP_GetExtendedAttributes1 Retrieve a structure with information about Global items the HID parser didn t recognize. HidP_GetLinkCollectionNodes Retrieve a structure with information about collections within a top-level collection. HidP_GetSpecificButtonCaps Like HidP_GetButtonCaps but can specify a Usage Page Usage ID and link collection. HidP_GetSpecificValueCaps Like HidP_GetValueCaps but can specify a Usage Page Usage ID and link collection. HidP_GetValueCaps Retrieve an array with information about the values in a top-level collection for a specified report type. HidP_IsSameUsageAndPage Determine if two Usages each consisting of a Usage Page and Usage ID are equal. HidP_MaxDataListLength Retrieve the maximum number of HIDP_DATA structures that HidP_GetData can return for a HID report type and top-level collection. HidP_MaxUsageListLength Retrieve the maximum number of Usage IDs that HidP_GetUsages can return for a report type and top-level collection. HidP_ TranslateUsagesToI8042ScanCodes Map Usages on the HID_USAGE_PAGE_KEYBOARD Usage Page to PS 2 scan codes. HidP_UsageAndPageListDifference Retrieve the differences between two arrays of Usages Usage Page and Usage ID . HidP_UsageListDifference Retrieve the differences between two arrays of Usage IDs. 1Not supported under Windows 98 Gold. 316 Human Interface

• Phần cứng
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• MainBoard
• thiết bị máy tính
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