From 9e9d47ce80e9dfbc3224e7788bab7d61060a655f Mon Sep 17 00:00:00 2001
From: ray <2954701669@qq.com>
Date: Thu, 18 Apr 2024 07:04:09 +0000
Subject: [PATCH] update.

---
 usb_read_data.cpp | 29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/usb_read_data.cpp b/usb_read_data.cpp
index d6432cd..f3fe0e1 100644
--- a/usb_read_data.cpp
+++ b/usb_read_data.cpp
@@ -60,7 +60,7 @@ int main()
 	}
 	// 打印usb设备信息
 	// print_devs(devs);
-	dev_handle = libusb_open_device_with_vid_pid(NULL, 0x2833, 0x0002);
+	dev_handle = libusb_open_device_with_vid_pid(NULL, 0x0483, 0x5750);
 	if (dev_handle == NULL)
 	{
 		printf("Cannot open device\n");
@@ -94,20 +94,23 @@ int main()
 	while (1)
 	{
 
-		r = libusb_bulk_transfer(dev_handle, (0x01 | LIBUSB_ENDPOINT_IN), data, 64, &transferred, 1000);
-		if (r == 0 && actual == 64) // we read the 64 bytes successfully
-			printf("Read Successful\n");
-		else
+		r = libusb_interrupt_transfer(dev_handle, (0x01 | LIBUSB_ENDPOINT_IN), data, 64, &transferred, 1000);
+		if (r == 0 && actual == 127){
+			// 解析GeekIMU的磁力计信息
+			int16_t mx = *(int16_t *)(data + 3);
+			int16_t my = *(int16_t *)(data + 5);
+			int16_t mz = *(int16_t *)(data + 7);
+			printf("mag:%d,%d,%d\n", mx, my, mz);		
+		}else{
 			printf("Read Error\n");
-		printf("%i,%i\n", r, actual);
+		}
+			
+		//printf("%i,%i\n", r, actual);
+		
+		
 
-		// 解析GeekIMU的磁力计信息
-		int16_t mx = *(int16_t *)(data + 56);
-		int16_t my = *(int16_t *)(data + 58);
-		int16_t mz = *(int16_t *)(data + 60);
-		printf("mag:%d,%d,%d\n", mx, my, mz);
 		// 睡眠延时100ms
-		usleep(1000 * 100);
+		usleep(1000 * 10);
 		// 清屏
 		// printf("%s","\033[1H\033[2J");//clear display
 	}
@@ -125,4 +128,4 @@ int main()
 	libusb_exit(NULL);
 
 	return 0;
-}
\ No newline at end of file
+}