WSL2 内ではホストの USB デバイスを使うことができないという大きな欠点がある。WSL2 のベースとなる Hyper-V 基盤は USB の仮想化というのがないので、すぐにサポートされることはないだろうという見込み。
そこで USB IP という USB プロトコルを IP に乗せネットワーク経由にする技術がある。usbipd-win はこの USB IP のホストを Windows 上で実現するソフトウェアの1つでOSS。MS の公式 YouTube で紹介されていて知った。
USB IP 系のあれこれはドライバの関係で secure boot と相性がわるかったりするが…… これはどうだろう。現状よくわかってない (Secure Boot していないので)
インストール
winget install --exact dorssel.usbipd-win
この状態で Administrator 権限の PowerShell をひらき、usbipd.exe list が実行できることを確認する
$ sudo /usr/lib/linux-tools/5.4.0-77-generic/usbip list --remote=172.18.48.1
Exportable USB devices
======================
- 172.18.48.1
4-3: STMicroelectronics : ST-LINK/V2 (0483:3748)
: USB\VID_0483&PID_3748\6&19CA3885&0&3
: (Defined at Interface level) (00/00/00)
: 0 - Vendor Specific Class / Vendor Specific Subclass / Vendor Specific Protocol (ff/ff/ff)
lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0483:3748 STMicroelectronics ST-LINK/V2
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
一応 認識して使えてはいるっぽい。
sudo openocd -f interface/stlink-v2.cfg -f target/stm32f0x.cfg
Open On-Chip Debugger 0.10.0
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : auto-selecting first available session transport "hla_swd". To override use 'transport select <transport>'.
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
adapter speed: 1000 kHz
adapter_nsrst_delay: 100
none separate
Info : Unable to match requested speed 1000 kHz, using 950 kHz
Info : Unable to match requested speed 1000 kHz, using 950 kHz
Info : clock speed 950 kHz
Info : STLINK v2 JTAG v34 API v2 SWIM v7 VID 0x0483 PID 0x3748
Info : using stlink api v2
Info : Target voltage: 3.262724
Warn : UNEXPECTED idcode: 0x2ba01477
Error: expected 1 of 1: 0x0bb11477
in procedure 'init'
in procedure 'ocd_bouncer'
PS C:\Users\test> usbipd list
Unhandled exception. System.AggregateException: One or more errors occurred. (An item with the same key has already been added. Key: [1, UsbIpServer.UsbConfigurationDescriptors+UsbConfiguration])
---> System.ArgumentException: An item with the same key has already been added. Key: [1, UsbIpServer.UsbConfigurationDescriptors+UsbConfiguration]
at System.Collections.Generic.TreeSet`1.AddIfNotPresent(T item)
at System.Collections.Generic.SortedSet`1.Add(T item)
at System.Collections.Generic.SortedDictionary`2.Add(TKey key, TValue value)
at UsbIpServer.UsbConfigurationDescriptors.AddDescriptor(ReadOnlySpan`1 descriptor) in D:\a\usbipd-win\usbipd-win\UsbIpServer\UsbConfigurationDescriptors.cs:line 96
at UsbIpServer.ExportedDevice.GetConfigurationDescriptor(DeviceFile hub, UInt16 connectionIndex, Byte numConfigurations)
at UsbIpServer.ExportedDevice.GetDevice(SafeDeviceInfoSetHandle deviceInfoSet, SP_DEVINFO_DATA devInfoData, CancellationToken cancellationToken) in D:\a\usbipd-win\usbipd-win\UsbIpServer\ExportedDevice.cs:line 202
at UsbIpServer.ExportedDevice.GetAll(CancellationToken cancellationToken) in D:\a\usbipd-win\usbipd-win\UsbIpServer\ExportedDevice.cs:line 239
at UsbIpServer.Program.<>c.<<Main>b__19_9>d.MoveNext() in D:\a\usbipd-win\usbipd-win\UsbIpServer\Program.cs:line 234
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
at System.Threading.Tasks.Task`1.get_Result()
at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.<>c__DisplayClass79_0.<OnExecute>b__0()
at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args)
at UsbIpServer.Program.Main(String[] args) in D:\a\usbipd-win\usbipd-win\UsbIpServer\Program.cs:line 555
usbview.exe による
---===>Device Information<===---
English product name: "xCORE USB Audio 2.0"
ConnectionStatus:
Current Config Value: 0x01 -> Device Bus Speed: High (is not SuperSpeed or higher capable)
Device Address: 0x0A
Open Pipes: 2
===>Device Descriptor<===
bLength: 0x12
bDescriptorType: 0x01
bcdUSB: 0x0200
bDeviceClass: 0xEF -> This is a Multi-interface Function Code Device
bDeviceSubClass: 0x02 -> This is the Common Class Sub Class
bDeviceProtocol: 0x01 -> This is the Interface Association Descriptor protocol
bMaxPacketSize0: 0x40 = (64) Bytes
idVendor: 0x20B1 = XMOS Ltd.
idProduct: 0x000A
bcdDevice: 0x06C5
iManufacturer: 0x01
English (United States) "XMOS"
iProduct: 0x03
English (United States) "xCORE USB Audio 2.0"
iSerialNumber: 0x00
bNumConfigurations: 0x02
*!*CAUTION: Most host controllers will only work with one configuration per speed
