GigaDevice Semiconductor GD32 Series, User Manual

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AN050
GD32 USBFS&USBHS Firmware Library User Guide
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usbh_user_device_reset ,
usbh_user_device_disconnected ,
usbh_user_over_current_detected ,
usbh_user_device_speed_detected ,
usbh_user_device_desc_available ,
usbh_user_device_address_assigned ,
usbh_user_configuration_descavailable ,
usbh_user_manufacturer_string ,
usbh_user_product_string ,
usbh_user_serialnum_string ,
usbh_user_enumeration_finish ,
usbh_user_userinput ,
usbh_usr_msc_application ,
usbh_user_device_not_supported ,
usbh_user_unrecovered_error
};
The functions of each function are described in Table 6-4. USB host library user interface
function .
Table 6-4
. USB host library user interface function
Function name Functional description
usbh_user_init initialize user operation in host mode
usbh_user_deinit configure user as default
usbh_user_device_connected user operation of USB connection
usbh_user_device_reset user operation of device resetting
usbh_user_device_disconnected user operation of USB disconnection
usbh_user_over_current_detected user operation of device overloading
usbh_user_device_speed_detected user operation of detecting device speed
usbh_user_device_desc_available user operation when device descriptor is available
usbh_user_device_address_assigned user operation when device is successfully configured
usbh_user_configuration_descavailable user operation when configuration descriptor is available
usbh_user_manufacturer_string user operation when vendor string is available
usbh_user_product_string user operation when product string is available
usbh_user_serialnum_string user operation when serial number is exist
usbh_user_enumeration_finish user operation when enumeration is accomplished
usbh_user_userinput user operation when entering user state
usbh_usr_xxx_application user application code callback function
usbh_user_device_not_supported user operation when device is not supported
usbh_user_unrecovered_error user operation when unrecoverable error happen