The following table shows functions contained in the platform dependent driver (PDD) for the USB open host controller (OHC) driver.
| Programming element | Description |
|---|---|
| HcdPdd_CheckConfigPower | This function checks power for a requested configuration. |
| HcdPdd_Close | This function is the host controller driver close function. |
| HcdPdd_Deinit | This function is the HC driver de-initialization routine. |
| HcdPdd_DllMain | This function is the main dynamic-link library (DLL) entry point for the PDD portion of a host controller interface (HCI) driver. |
| HcdPdd_Init | This function initializes a HCI and any platform-specific hardware and structures. |
| HcdPdd_IOControl | This function is the host controller driver IOCTL routine. |
| HcdPdd_Open | This function is the host controller driver open routine. |
| HcdPdd_PowerDown | This function is the host controller driver power-off handler. |
| HcdPdd_PowerUp | This function is the host controller driver power-up handler. |
| HcdPdd_Read | This function is the host controller driver read routine. |
| HcdPdd_Seek | This function is the host controller driver seek routine. |
| HcdPdd_Write | This function is the host controller driver write routine. |
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