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Partial Changes Migration Guide
======================================
usbh_initialize
------------------
usbh_initialize has added event_handler parameter starting from v1.6.0. Usually not needed, can pass NULL.
dwc2 glue st
----------------
Starting from v1.5.0, dwc2 glue file has built-in low-level initialization, such as `usb_dc_low_level_init`, which depends on `HAL_PCD_MspInit` and `HAL_HCD_MspInit`. Must use stm32cubemx generation. Third-party platforms do not guarantee having these function implementations, check by yourself.
dwc2 glue
----------------
Starting from v1.5.1, dwc2 adds `struct dwc2_user_params` for implementing different configurations for multiple dwc2 ports. It replaces `usbd_get_dwc2_gccfg_conf` and `usbh_get_dwc2_hccfg_conf` functions,
and adds `dwc2_get_user_params` function implementation, example as follows:
.. code-block:: C
#ifndef CONFIG_USB_DWC2_CUSTOM_PARAM
void dwc2_get_user_params(uint32_t reg_base, struct dwc2_user_params *params)
{
memcpy(params, ¶m_common, sizeof(struct dwc2_user_params));
#ifdef CONFIG_USB_DWC2_CUSTOM_FIFO
struct usb_dwc2_user_fifo_config s_dwc2_fifo_config;
dwc2_get_user_fifo_config(reg_base, &s_dwc2_fifo_config);
params->device_rx_fifo_size = s_dwc2_fifo_config.device_rx_fifo_size;
for (uint8_t i = 0; i < MAX_EPS_CHANNELS; i++) {
params->device_tx_fifo_size[i] = s_dwc2_fifo_config.device_tx_fifo_size[i];
}
#endif
}
#endif
host serial
----------------
Starting from v1.6.0, host adds host serial framework for unifying all serial-like devices. The following APIs need to be replaced with new serial APIs:
.. code-block:: C
int usbh_xxx_set_line_coding(struct usbh_xxx *xxx_class, struct cdc_line_coding *line_coding);
int usbh_xxx_get_line_coding(struct usbh_xxx *xxx_class, struct cdc_line_coding *line_coding);
int usbh_xxx_set_line_state(struct usbh_xxx *xxx_class, bool dtr, bool rts);
int usbh_xxx_bulk_in_transfer(struct usbh_xxx *xxx_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout);
int usbh_xxx_bulk_out_transfer(struct usbh_xxx *xxx_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout);
Replace with:
.. code-block:: C
struct usbh_serial *usbh_serial_open(const char *devname, uint32_t open_flags);
int usbh_serial_close(struct usbh_serial *serial);
int usbh_serial_control(struct usbh_serial *serial, int cmd, void *arg);
int usbh_serial_write(struct usbh_serial *serial, const void *buffer, uint32_t buflen);
int usbh_serial_read(struct usbh_serial *serial, void *buffer, uint32_t buflen);
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