160 lines
5.8 KiB
Bash
160 lines
5.8 KiB
Bash
#!/bin/bash
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apt-get install bridge-utils
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rmmod g_mass_storage
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# 定义USB Gadget的根目录
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GADGET_ROOT="/sys/kernel/config/usb_gadget/nanopi"
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# *** 重要：请根据你的实际情况修改这个值！ ***
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# 你可以通过运行 'ls /sys/class/udc/' 命令来查看可用的 UDC 设备名称。
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# 常见的名称有：musb-hdrc.0, musb-hdrc.4.auto, ci_hdrc.0, 20a00000.usb
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UDC_DEVICE="musb-hdrc.4.auto"
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# 确保脚本以root权限运行
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if [ "$(id -u)" -ne 0 ]; then
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echo "This script must be run as root. Please run with 'sudo'."
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exit 1
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fi
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echo "--------------------------------------"
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echo "Configuring USB Gadget for RNDIS Only"
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echo "--------------------------------------"
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# 1. 卸载并清理旧的 gadget 配置 (可选，但推荐在测试时使用以确保干净状态)
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if [ -d "${GADGET_ROOT}" ]; then
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echo "Disabling existing gadget '${GADGET_ROOT##*/}'..."
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# 尝试解绑当前的 UDC (如果已经绑定)
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# 这需要先进入 gadget 目录，然后才能 echo "" > UDC
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if [ -f "${GADGET_ROOT}/UDC" ]; then
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current_udc=$(cat "${GADGET_ROOT}/UDC")
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if [ -n "$current_udc" ]; then
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echo "Unbinding ${current_udc} from previous gadget..."
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echo "" > "${GADGET_ROOT}/UDC" # 解绑 UDC
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sleep 1
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fi
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fi
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rm -rf "${GADGET_ROOT}" # 删除所有旧的配置
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echo "Old gadget configuration removed."
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sleep 1
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fi
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# 2. 进入 gadget 根目录并创建
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echo "Creating new gadget configuration at ${GADGET_ROOT}..."
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mkdir -p "${GADGET_ROOT}"
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cd "${GADGET_ROOT}" || { echo "ERROR: Failed to cd to ${GADGET_ROOT}. Exiting."; exit 1; }
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# 3. 设置设备描述符
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echo "Setting device descriptors..."
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echo 0x0955 > idVendor # FriendlyElec's Vendor ID (or your preferred)
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echo 0x7020 > idProduct # Product ID for NanoPi-NEO-Core (or your preferred)
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echo 0x0100 > bcdDevice # Device Version 1.0 (0x0100)
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echo 0x0200 > bcdUSB # USB 2.0 (0x0200)
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# RNDIS 复合设备通常使用特定的设备类/子类/协议
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echo 0xEF > bDeviceClass # Miscellaneous Device Class
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echo 0x02 > bDeviceSubClass # Common Class
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echo 0x01 > bDeviceProtocol # Interface Association Descriptor (IAD)
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# 4. 设置字符串描述符
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echo "Setting string descriptors (Manufacturer, Product, Serial)..."
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mkdir -p strings/0x409 # English (0x409)
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# 获取设备树中的序列号，如果没有则使用默认值
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if [ -f /proc/device-tree/serial-number ]; then
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serialnumber="$(cat /proc/device-tree/serial-number|tr -d '\000')"
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else
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serialnumber="1234567890ABCD" # Default serial number
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fi
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echo "${serialnumber}" > strings/0x409/serialnumber
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echo "FriendlyElec" > strings/0x409/manufacturer
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echo "NanoPi-NEO-Core" > strings/0x409/product
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# 5. 创建配置 c.1
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echo "Creating configuration 'c.1'..."
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cfg="configs/c.1"
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mkdir -p "${cfg}/strings/0x409"
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echo 0x80 > "${cfg}/bmAttributes" # Self-powered
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echo 250 > "${cfg}/MaxPower" # Max power consumption (250mA)
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echo "RNDIS Ethernet" > "${cfg}/strings/0x409/configuration" # Configuration description
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# 6. 配置 RNDIS 功能
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echo "Enabling RNDIS function (rndis.usb0)..."
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func_rndis="functions/rndis.usb0"
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mkdir -p "${func_rndis}"
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ln -sf "${func_rndis}" "${cfg}" # Link RNDIS function to configuration c.1
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# RNDIS OS Descriptors for Windows auto-detection
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echo "Setting RNDIS OS Descriptors..."
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echo 1 > os_desc/use
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echo 0xcd > os_desc/b_vendor_code
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echo MSFT100 > os_desc/qw_sign
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echo "RNDIS" > "${func_rndis}/os_desc/interface.rndis/compatible_id"
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echo "5162001" > "${func_rndis}/os_desc/interface.rndis/sub_compatible_id"
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ln -sf "${cfg}" os_desc # Link configuration c.1 to os_desc
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# 7. 绑定到 UDC 以激活 Gadget
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echo "Activating USB Gadget on UDC: ${UDC_DEVICE}..."
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# Check if UDC device exists in /sys/class/udc/
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if [ -e "/sys/class/udc/${UDC_DEVICE}" ]; then
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echo "${UDC_DEVICE}" > UDC
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echo "USB Gadget successfully activated."
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else
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echo "ERROR: UDC device '${UDC_DEVICE}' not found in /sys/class/udc/."
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echo " Please check your UDC_DEVICE variable and 'ls /sys/class/udc/' output."
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exit 1
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fi
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# 8. 配置 RNDIS 网络接口
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echo "Configuring RNDIS network interface (usb0)..."
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NET_IP="192.168.55.1"
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NET_MASK="255.255.255.0"
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# 等待 usb0 接口出现
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echo "Waiting for 'usb0' interface to appear..."
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interface_ready=0
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for i in $(seq 1 10); do # 等待最多10秒
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if ip link show usb0 &> /dev/null; then
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echo "'usb0' interface found."
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interface_ready=1
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break
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fi
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sleep 1
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done
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if [ "$interface_ready" -eq 0 ]; then
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echo "ERROR: 'usb0' interface did not appear after 10 seconds. RNDIS network configuration failed."
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echo " Check kernel modules (g_ether, usb_f_rndis) and dmesg for errors."
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exit 1
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fi
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# 检查并安装 bridge-utils (如果需要)
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if ! command -v brctl &> /dev/null; then
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echo "WARNING: 'brctl' command not found. Please install 'bridge-utils' package."
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echo " (e.g., 'sudo apt install bridge-utils' on Debian/Ubuntu)"
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# 如果没有 brctl，尝试直接配置 usb0 接口，但不推荐
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echo "Attempting to configure 'usb0' directly (without bridge)..."
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ifconfig usb0 "${NET_IP}" netmask "${NET_MASK}" up
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echo "RNDIS network configured to ${NET_IP} on usb0 directly."
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else
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# 清理旧的桥接设备 (如果存在)
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if ip link show zzbr0 &> /dev/null; then
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echo "Removing existing bridge 'zzbr0'..."
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brctl delbr zzbr0
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fi
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brctl addbr zzbr0 # 创建一个名为 zzbr0 的网络桥接
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ifconfig zzbr0 "${NET_IP}" netmask "${NET_MASK}" up # 配置桥接接口的IP地址
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brctl addif zzbr0 usb0 # 将 RNDIS 接口 usb0 添加到桥接
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ifconfig usb0 up # 确保 usb0 接口被激活
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echo "RNDIS network configured to ${NET_IP} on 'zzbr0' (bridging 'usb0')."
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fi
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echo "--------------------------------------"
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echo "USB Gadget RNDIS setup complete."
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echo "Connect your device to a PC."
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echo "--------------------------------------"
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exit 0
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