I hope this email will go to freebsd-usb@ since I am not a member of this list.
Le jeu. 3 janv. 2019 à 13:19, Hans Petter Selasky <h...@selasky.org> a écrit :
>
> On 1/3/19 12:35 PM, Matthias Apitz wrote:
> > but is doing so 3000++ times:
> >
> > $ dmesg | grep 'PID 544' | wc -l
> > 3441
> >
> > This proc is started by devd(8) with that devd(8) hook:
> >
>
> Hi,
>
> Basically pcscd is congesting the enumeration SX lock, preventing
> usbconfig from running because it tries to open the same USB device over
> and over again. I'm not sure why, but it can have something to do with
> how you start pcscd.
>
> Can you try to use the example rules given by the pcscd packet message?
>
> attach 100 {
> device-name "ugen[0-9]+";
> action "/usr/local/sbin/pcscd -H";
> };
>
> detach 100 {
> device-name "ugen[0-9]+";
> action "/usr/local/sbin/pcscd -H";
> };
>
> Maybe there is a bug in pcsd that it tries to open the same USB device
> over and over again if there is an libusb error? Maybe it should sleep a
> bit before trying to re-enumerate devices?
>
> I'm CC'ing Ludovic Rousseau, in case he has any comments.
You can enable pcscd hotplug debug by editing DEBUG_HOTPLUG at
https://salsa.debian.org/rousseau/PCSC/blob/master/src/hotplug_libusb.c#L69
A pcscd trace would be helpful. See https://pcsclite.apdu.fr/#support
Bye
--
Dr. Ludovic Rousseau
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