//SPI驱动,和platform_driver,i2c_driver类似structspi_driver{conststructspi_device_id*id_table;int(*probe)(structspi_device *spi);int(*remove)(structspi_device *spi);void(*shutdown)(structspi_device *spi);int(*suspend)(structspi_device *spi,pm_message_tmesg);int(*resume)(structspi_device...
void (*shutdown)(struct spi_device *spi); int (*suspend)(struct spi_device *spi, pm_message_t mesg); int (*resume)(struct spi_device *spi); struct device_driver driver; }; static struct spi_driver w25q_driver = { .driver = { .name = "spi-w25q", .owner = THIS_MODULE, }, /...
{ case 'D': device = optarg; break; case 's': speed = atoi(optarg); break; case 'd': delay = atoi(optarg); break; case 'b': bits = atoi(optarg); break; case 'l': mode |= SPI_LOOP; break; case 'H': mode |= SPI_CPHA; break; case 'O': mode |= SPI_CPOL; break;...
struct spi_driver {const struct spi_device_id *id_table; /*支持的spi_device设备表*/int(*probe)(struct spi_device *spi);int(*remove)(struct spi_device *spi);void (*shutdown)(struct spi_device *spi);int(*suspend)(struct spi_device *spi, pm_message_t mesg);int(*resume)(struct spi...
spi控制器驱动(SPI Master Driver):SPI Master针对不同类型的spi控制器硬件,实现spi总线的硬件访问操作。SPI Master通过接口函数向SPI Core注册一个控制器。 spi设备驱动(SPI Device Driver):SPI Driver是对应于spi设备端的驱动程序,通过接口函数向SPI Core进行注册,SPI Driver的作用是将spi设备挂接到spi总线上; ...
const struct spi_device_id xxx_id[] = { {"xxx", 0}, {} }; /* 设备树匹配列表 */ static const struct of_device_id xxx_of_match[] = { { .compatible = "xxx" }, { /* Sentinel */ } }; /* SPI 驱动结构体 */ static struct spi_driver xxx_driver = { .probe = xxx_probe,...
spi_driver使用C文件实现,里面有id_table表示能支持哪些SPI设备,有probe函数 spi_device用来描述SPI设备,比如它的片选引脚、频率 可以来自设备树:比如由SPI控制器驱动程序解析设备树后创建、注册spi_device 可以来自C文件:比如使用spi_register_board_info创建、注册spi_device ...
void(*shutdown)(struct spi_device*spi);struct device_driver driver;}; 1. 2. 3. 4. 5. 6. 7. 8. 9. spi_board_info:描述一个 spi 从机设备板级信息,无设备树时使用。 复制 struct spi_board_info{//设备名称charmodalias[SPI_NAME_SIZE];const void*platform_data;//设备的平台数据 ...
soc related device drivers ---> [*] DISP Driver Support(spi_lcd) [*] spilcd hal APIs test 在SPILCD 驱动选择界面可以看到LCD_FB panels select选择 SPI 屏幕的驱动,本文只注重于 SPI LCD 的使用,驱动编写请查看《SPI LCD 显示驱动》,进入LCD_FB panels select选项 ...
void (*cleanup)(struct spi_device *spi); /* * These hooks are for drivers that want to use the generic * master transfer queueing mechanism. If these are used, the * transfer() function above must NOT be specified by the driver. ...