bugfix: flash with wsl2

[JurajSadel]

Closes #166

Note: It is not possible to flash usb-serial-jtag chips with WSL2 because the reset also resets serial-jtag-peripheral which disconnects the chip from WSL2.

[KorvinSzanto]

This looks to work for me in WSL 2.

Steps to test:

1. Set up usbipd in windows 11
2. Open powershell and use usbipd list to identify the esp32, it shows up as USB to UART Bridge Controller for me
3. In powershell attach the usb device to wsl with usbipd wsl attach --busid 0-0 (Swap the bus id for the one you identified)
4. In wsl give permission to access the newly mounted usb tty with sudo chmod 777 /dev/ttyUSB0 or whatever your new tty is
5. Run espflash board-info to successfully view the board

Assuming your board shows up without an error, you're good to flash

[andywwright]

Definitely works, thank you so much!

            SerialPortType::Unknown => &UsbPortInfo {
                vid: 0,
                pid: 0,
                serial_number: None,
                manufacturer: None,
                product: None,
            }

I thought VID and PID were necessary for the crate to work, but this simplifies everything.

[MabezDev]

Definitely works, thank you so much!

            SerialPortType::Unknown => &UsbPortInfo {
                vid: 0,
                pid: 0,
                serial_number: None,
                manufacturer: None,
                product: None,
            }

I thought VID and PID were necessary for the crate to work, but this simplifies everything.

It is required for flashing via USB-SERIAL-JTAG, as it has a different reset routine, but other USB serial chips should just work :). In the future, we might want to add a CLI flag to choose which reset routine to use.

[jessebraham]

@JurajSadel this looks good, thank you for pursuing this issue!

Would you mind also adding notes to both cargo-espflash/README.md and espflash/README.md mentions that USB Serial JTAG will not work in WSL please? Just a header and a single sentence is probably adequate, I just want it to be clearly noted somewhere.

[andywwright]

I like the commit as it is, it works and this is all I needed, but you might want to add some tiny warning like "The type of the tty port is unknown". I think it would really help reasoning about some future issues, especially with USB-SERIAL-JTAG. Left as it is you'll never know if you have real vid and pid detected or they are silent fake zeros.

[jessebraham]

Thanks for making those changes!