Comment 1 for bug 1967493

Hello,
Maybe your PL2303 is using another chip,
can you please upload the dmesg output with this device attached?
Also the output of the following command with it connected:

lsusb -v

And in case you're using a PL2303GS chip, here is a test kernel:
https://people.canonical.com/~phlin/kernel/pl2303gs/

Which includes:
https://github.com/torvalds/linux/commit/5b6ab28d06780c87320ceade61698bb6719c85db

Thanks