samples: tracing: Enable USB by the application (3758a3d4) · Commits · Wenxi XU / zephyr

samples/subsys/tracing/src/main.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -7,6 +7,8 @@

		#include <zephyr.h>
		#include <sys/printk.h>
		#include <logging/log.h>
		#include <usb/usb_device.h>

		/*
		* The hello world demo has two threads that utilize semaphores and sleeping
		@@ -85,6 +87,16 @@ void threadA(void dummy1, void dummy2, void *dummy3)
		ARG_UNUSED(dummy2);
		ARG_UNUSED(dummy3);

		#if (defined(CONFIG_USB) && defined(CONFIG_USB_DEVICE_STACK))
		int ret;

		ret = usb_enable(NULL);
		if (ret) {
		printk("usb backend enable failed");
		return;
		}
		#endif /* CONFIG_USB */

		/* spawn threadB */
		k_tid_t tid = k_thread_create(&threadB_data, threadB_stack_area,
		STACKSIZE, threadB, NULL, NULL, NULL,

+0 −9

Original line number	Diff line number	Diff line
		@@ -167,16 +167,7 @@ static void tracing_backend_usb_output(const struct tracing_backend *backend,
		}
		}

		static void tracing_backend_usb_init(void)
		{
		int ret;

		ret = usb_enable(NULL);
		__ASSERT(ret == 0, "usb backend enable failed");
		}

		const struct tracing_backend_api tracing_backend_usb_api = {
		.init = tracing_backend_usb_init,
		.output = tracing_backend_usb_output
		};