"No EBB connected" and other errors

[elsifthen]

I just got an AxiDraw V3 and I can't get saxi to see it. axicli and the python API all work as expected.

System info:

• OS: Raspbian GNU/Linux 11
• Node: 18.16.1
• npm: 9.5.1
• AxiDraw firmware version: 2.8.1

pyserial is able to see this:

$ python -m serial.tools.list_ports -v
/dev/ttyACM0        
    desc: EiBotBoard,axidraw
    hwid: USB VID:PID=04D8:FD92 SER=axidraw LOCATION=1-1.2:1.0
/dev/ttyAMA0        
    desc: ttyAMA0
    hwid: fe201000.serial
2 ports found

However saxi can't seem to get the same info:

$ saxi --firmware-version
No EBB connected

$ saxi --firmware-version -d /dev/ttyACM0
/home/mimi/.config/nvm/versions/node/v18.16.1/lib/node_modules/saxi/dist/server/ebb.js:28
        this.writer = this.port.writable.getWriter();
                                         ^

TypeError: Cannot read properties of undefined (reading 'getWriter')
    at new EBB (/home/mimi/.config/nvm/versions/node/v18.16.1/lib/node_modules/saxi/dist/server/ebb.js:28:42)
    ...

Also, here's the info from node serialport lib:

$ node -e "require('serialport').list().then((ps) => console.log(JSON.stringify(ps)))"
[{"vendorId":"1106","productId":"3483","path":"/dev/ttyACM0"},{"path":"/dev/ttyAMA0"},{"path":"/dev/ttyS0"}]

I've also tried with an old version of Node, v12.22.12, and the results were the same. Any suggestions would be greatly appreciated!

[elsifthen]

I found two separate issues.

1. node-serialport is broken because Raspbian has a Debian bug that changed the udevadm output attribute names we need from ID_* to ID_USB_*, so the EBB matching code is failing.
2. saxi --firmware-version is not working because this.port.writable is only defined after calling this.port.open(). I think it's a bug in this lib.

I kept on using --firmware-version as a simple test, but turns out saxi -d /dev/ttyACM0 just works.

[elsifthen]

Here's a link to the node-serialport issue: serialport/bindings-cpp#115