Date: Tue, 23 Mar 2010 21:57:30 +0100 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-usb@freebsd.org Subject: Re: uslcom drops chars(?) when used with hub Message-ID: <201003232157.30932.hselasky@c2i.net> In-Reply-To: <539c60b91003231144n37cd3c3ct2dbd1f7f8f8bd953@mail.gmail.com> References: <539c60b91003231144n37cd3c3ct2dbd1f7f8f8bd953@mail.gmail.com>
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On Tuesday 23 March 2010 19:44:55 Steve Franks wrote: > After my last 8-stable buildworld, I can't upgrade firmware on uslcom > devices plugged into a hub. I can still talk to them over a terminal, > but it seems anything that slams bits at them 'fast' dies an early > death. Works fine in motherboard usb slot, however. Also, had > identical hub that's rarely ever used, which has same behavior, so all > things point to an OS/quirks type issue. > > How do I even begin debugging this? This is a major problem for my > day to day workflow. I do *a lot* of firmware upgrades. Hi, You can try: sysctl hw.usb.uslcom.debug=15 What does usbconfig say about your device when you use the HUB and without HUB? Also check the version history for /sys/dev/usb/serial/uslcom.c at freebsd.org. --HPS
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