/**************************************************************************** * boards/arm/rp2040/common/include/rp2040_lcd_backpack.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ #ifndef __BOARDS_ARM_RP2040_COMMON_INCLUDE_RP2040_LCD_BACKPACK_H #define __BOARDS_ARM_RP2040_COMMON_INCLUDE_RP2040_LCD_BACKPACK_H /**************************************************************************** * Included Files ****************************************************************************/ #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /**************************************************************************** * Type Definitions ****************************************************************************/ /**************************************************************************** * Public Types ****************************************************************************/ /**************************************************************************** * Public Data ****************************************************************************/ #ifdef __cplusplus #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /**************************************************************************** * Inline Functions ****************************************************************************/ /**************************************************************************** * Public Function Prototypes ****************************************************************************/ /**************************************************************************** * Name: board_lcd_backpack_init * * Description: * Initialize the LCD1602 display controlled by Backpack with PCF8574 * * Input Parameters: * devpath - The full path to the driver to register. E.g., "/dev/slcd0" * * Returned Value: * Zero (OK) on success; a negated errno value on failure. * ****************************************************************************/ int board_lcd_backpack_init(int devno, int busno, int rows, int cols); #undef EXTERN #ifdef __cplusplus } #endif #endif /* __BOARDS_ARM_RP2040_COMMON_INCLUDE_RP2040_LCD_BACKPACK_H */