From d3cd41086e793b9c162cd1c632b2970941122984 Mon Sep 17 00:00:00 2001 From: shawn_he Date: Sun, 24 Apr 2022 17:48:23 +0800 Subject: [PATCH] update docs Signed-off-by: shawn_he --- en/device-dev/subsystems/subsys-usbservice-overview.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/en/device-dev/subsystems/subsys-usbservice-overview.md b/en/device-dev/subsystems/subsys-usbservice-overview.md index d904650f75..af3d8abe88 100644 --- a/en/device-dev/subsystems/subsys-usbservice-overview.md +++ b/en/device-dev/subsystems/subsys-usbservice-overview.md @@ -6,7 +6,7 @@ USB devices are classified into two types: USB host and USB device. On OpenHarmony, you can use the port service to switch between the host mode and device mode. In host mode, you can obtain the list of connected USB devices, manage device access permissions, and perform bulk transfer or control transfer between the host and connected devices. In device mode, you can switch between functions including HDC (debugging), ACM (serial port), and ECM (Ethernet port). **Figure 1** USB service architecture - ![en-us_image_0000001267088285](figures/en-us_image_0000001267088285.png) + ![USB service architecture](figures/en-us_image_0000001267088285.png) - USB API: a layer that provides JS APIs for the upper layer through NAPI. -- GitLab