/
USBD_DrvStop

USBD_DrvStop

Dec 03, 2020

Description

The next function within the device API structure is the device Stop() function. This function is called once each time a device is stopped.

Files

Every device driver’s usbd_drv.c

Prototype

static void USBD_DrvStop (USBD_DRV *p_drv);

 

Arguments

p_drv

Pointer to USB device driver structure.

Returned Value

None.

Callers

USB device core layer.

Notes / Warnings

  1. Typically, the Stop() function performs the following operations:

    1. Disable the controller.

    2. Clear and locally disable interrupts on the hardware device.

    3. Disconnect from the USB host (e.g, reset the pull-up on the D+ pin). This is generally performed via the device’s BSP function pointer, Disconn(), implemented in usbd_bsp_<driver_name>.c (see USBD_BSP_Disconn).