57 lines
2.1 KiB
Bash
57 lines
2.1 KiB
Bash
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#!/usr/bin/env bash
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set -euo pipefail
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echo "=== USB devices (candidate CAN adapters) ==="
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# 先列出所有USB设备，方便你看到Vendor/Product
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lsusb
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echo
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echo "=== Finding candidate USB devices by vendor/product (you may need to adjust filters) ==="
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echo "Tip: if you know VID:PID, set VIDPID like: VIDPID=1d50:606f ./probe_canalystii_ports.sh"
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VIDPID="${VIDPID:-}"
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if [[ -n "${VIDPID}" ]]; then
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lsusb | grep -i "${VIDPID}" || true
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else
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echo "(No VIDPID specified. We'll show details for all USB devices; you can narrow it later.)"
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fi
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echo
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echo "=== Enumerate /dev/bus/usb/*/* and print stable attributes ==="
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# 遍历所有 USB device node，提取关键属性：idVendor/idProduct + DEVPATH + KERNELS(物理端口链)
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for devnode in /dev/bus/usb/*/*; do
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# 过滤：如果设置了VIDPID，则只看匹配的
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if [[ -n "${VIDPID}" ]]; then
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info=$(udevadm info -a -n "$devnode" 2>/dev/null | head -n 80 || true)
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echo "$info" | grep -qi "ATTR{idVendor}==\"${VIDPID%%:*}\"" || continue
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echo "$info" | grep -qi "ATTR{idProduct}==\"${VIDPID##*:}\"" || continue
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fi
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# udev属性输出
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path=$(udevadm info -q path -n "$devnode" 2>/dev/null || true)
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[[ -z "$path" ]] && continue
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props=$(udevadm info -q property -n "$devnode" 2>/dev/null || true)
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vid=$(echo "$props" | awk -F= '/^ID_VENDOR_ID=/{print $2}')
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pid=$(echo "$props" | awk -F= '/^ID_MODEL_ID=/{print $2}')
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busnum=$(echo "$props" | awk -F= '/^BUSNUM=/{print $2}')
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devnum=$(echo "$props" | awk -F= '/^DEVNUM=/{print $2}')
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[[ -z "$vid" || -z "$pid" ]] && continue
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# 取 KERNELS 链：包含类似 2-3 / 1-1.2 这种物理端口信息
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kernels=$(udevadm info -a -n "$devnode" 2>/dev/null | awk -F'==' '/KERNELS==/{print $2}' | head -n 8 | tr -d '"' | tr '\n' ' ')
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echo "----"
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echo "DEVNODE : $devnode"
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echo "VID:PID : ${vid}:${pid}"
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echo "BUS/DEV : ${busnum:-?}/${devnum:-?}"
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echo "DEVPATH : $path"
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echo "KERNELS : $kernels"
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done
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echo
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echo "=== Next steps ==="
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echo "1) Identify the two CANalyst-II devices (same VID:PID) but different KERNELS like 2-3 and 2-4"
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echo "2) Use those KERNELS values to write udev rules mapping them to /dev/canalyst_left and /dev/canalyst_right"
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