UM0290 datasheet(20/76 Pages) STMICROELECTRONICS

20 / 76 page

STR7/STR9 USB firmware library

UM0290

20/76

Device table implementation

Description of the structure fields:

–

Total_Endpoint is the number of endpoints the USB application uses.

–

Total_Configuration is the number of configurations the USB application has.

USER_STANDARD_REQUEST implementation

This structure is used to manage the user implementation after receiving all standard

requests (except Get descriptors). The fields of this structure are:

–

void (*User_GetConfiguration)(void): Called after receiving the Get

Configuration Standard request.

–

void (*User_SetConfiguration)(void): Called after receiving the Set

Configuration Standard request.

–

void (*User_GetInterface)(void): Called after receiving the Get interface

Standard request.

–

void (*User_SetInterface)(void): Called after receiving the Set interface

Standard request.

–

void (*User_GetStatus)(void): Called after receiving the Get interface Standard

request.

–

void (*User_ClearFeature)(void): Called after receiving the Clear Feature

Standard request.

–

void (*User_SetEndPointFeature)(void): Called after receiving the set Feature

Standard request (only for endpoint recipient).

–

void (*User_SetDeviceFeature)(void): Called after receiving the set Feature

Standard request (only for Device recipient).

–

void (*User_SetDeviceAddress)(void): Called after receiving the set Address

Standard request.

1.3.5

usb_pwr (.c , .h)

This module manages the power management of the USB device it provides the following

functions:

Table 4.

Power management functions

Function Name

Description

RESULT Power_on(void)

Handles switch on conditions

RESULT Power_off(void)

Handles switch off conditions

void Suspend(void)

Sets suspend mode operation conditions

void Resume(RESUME_STATE

eResumeSetVal)

Handles wake-up operations

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