以下是一个简单的rpmsg驱动程序示例,它在probe()上发送“hello!”消息,并在接收到传入消息时将其内容转储到控制台。 #include<linux/kernel.h> #include<linux/module.h> #include<linux/rpmsg.h> staticvoidrpmsg_sample_cb(structrpmsg_channel *rpdev,void*data,intlen,void*priv, u32 src) { print_hex_...
void *data, int len, void *priv, u32 src){print_hex_dump(KERN_INFO, "incoming message:", DUMP_PREFIX_NONE, 16, 1, data, len, true);}static int rpmsg_sample_probe(struct rpmsg_channel *rpdev){int err;dev_info(&rpdev->dev, "chnl...
rpmsg-client:rpmsg-client设备的示例,使用的是rpmsg框架下原生的异构通讯方式,调用openamp的原生操作函数,比如OPENAMP_send、receive等即可通讯。 在注册设备时,传入的 RPMSG_SERVICE_NAME 即为 rpmsg-client-sample ,故会在Linux系统中注册一个名为rpmsg-client-sample的设备, 并且会自动匹配对应名称的内核模块(前面有...
{ .name = "rpmsg-client-sample" }, { }, }; MODULE_DEVICE_TABLE(rpmsg, rpmsg_driver_sample_id_table); static struct rpmsg_driver rpmsg_sample_client = { .drv.name = KBUILD_MODNAME, .drv.owner = THIS_MODULE, .id_table = rpmsg_driver_sample_id_table, .probe = rpmsg_sample_probe,...
转自:https://hceng.cn/2020/05/09/STM32MP157%E2%80%94%E2%80%94Remoteproc%E5%92%8CRPMsg/ 简单介绍基于STM32MP157的Remoteproc和RPMsg框架。STM32MP1系列产品,是STM32进军Linux的首款
.probe=rpmsg_sample_probe, 83+ .callback=rpmsg_sample_cb, 84+ .remove=__devexit_p(rpmsg_sample_remove), 85+ }; 86+ 87+ staticint__initrpmsg_client_sample_init(void) 88+ { 89+ returnregister_rpmsg_driver(&rpmsg_sample_client); ...
默认的初始化代码如下图,需要注意的是“main.c”文件,在里面添加LED灯的控制逻辑。还有“stm32mp1xx_hal_gpio.c”,这个是hal库源码,从里面可知hal提供的GPIO相关操作函数,比如这里用到的HAL_GPIO_WritePin()。 1 2 3 4 HAL_GPIO_WritePin(LED_BLUE_GPIO_Port, LED_BLUE_Pin, GPIO_PIN_...
int (*probe)(struct rpmsg_device *dev); void (*remove)(struct rpmsg_device *dev); void (*callback)(struct rpmsg_device *, void *, int, void *, u32); int (*callback)(struct rpmsg_device *, void *, int, void *, u32); }; int register_rpmsg_device(struct rpmsg_device *dev)...
…it/andersson/remoteproc Pull rpmsg updates from Bjorn Andersson: "This contains updates to make the rpmsg sample driver more useful, fixes the naming of GLINK devices to avoid naming collisions and a few minor bug fixes. It also updates MAINTAINERS to reflect the move to kernel.org" * tag...
BTW have you also compiled and inserted thedrivers/rpmsg/imx_rpmsg_tty.ckernel module as mentionned by the sample ? The Sample Docs Yes And You said:I've seen a first thing is that we are missing the ressource table definition in the linker script of the imx7d soc. ...