On Wed, 5 Nov 2014 15:46:25 +0000 Daniel Silverstone <dsilvers@xxxxxxxxxxxxxxxxx> wrote: > Sadly I can't look at the exact firmware of the device, but I can > tell you it was based on ST Electronics' virtual COM port example in > their *old* STM32 development kits. >From some experience with this at work, I have to say that that sample code had (circa 2010) some serious issues, and we ended up doing a lot of work to make it meet requirements on a project. I'm not that surprised it needs a quirk ... Richard -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html