[lxc-users] passthrough of usb 433mHz transceiver

[JPS]

Hi,

I tried your suggestion but unfortunately it does not work. I still 
have to add 'lxc-device add -n 112 /dev/ttyUSB0 /dev/ttyUSB0' to the 
host and then i can still only transmit via the rfxcom, not receive.

As a dirty workaround i installed domoticz on the host, works fine, but 
that's of course not the purpose of virtualization.............




Op zo, 25 okt 2015 om 12:02 , schreef Jean-Pierre Mous. <jpmous at gmx.fr>:
> Hello,
> 
> I solved similar issue by adding "chmod 666 /dev/ttyUSB0" at host 
> boot.
> And I have this in lxc container:
> # rfxcom
> lxc.cgroup.devices.allow = c 188:* rwm
> lxc.mount.entry = /dev/ttyUSB0  dev/ttyUSB0  none  bind,optional
> 
> Do not know if it is proper way but it works for me.
> 
> JP
> 
> Envoyé: jeudi 15 octobre 2015 à 15:27
> De: "Serge Hallyn" <serge.hallyn at ubuntu.com>
> À: "LXC users mailing-list" <lxc-users at lists.linuxcontainers.org>
> Objet: Re: [lxc-users] passthrough of usb 433mHz transceiver
> Start by checking the host's syslog (right after reproducing the 
> failure
> in the container) and look for DENIED messages. Report them here.
> 
> Then do
> 
> strace -f -ostrace.out whatever-command-you-run-that-fails
> 
> in the container. Look at the output of
> 
> egrep -e '(EPERM|EACCES)' strace.out
> 
> (or send it here)
> 
> -serge
> 
> Quoting JPS (mailbox at jsierink.nl):
> > thanks for the advice but I'm not very skilled in linux, so eacess
> > or eperm don't ring a bell.
> > Before I used an OpenZV container and that worked fine.
> > Unfortunately Proxmox decided to switch to lxc........
> >
> >
> >
> > Op di, 13 okt 2015 om 3:55 , schreef Serge Hallyn
> > <serge.hallyn at ubuntu.com>:
> > >Don't know anything about it, but I'd try stracing the software
> > >to see whether there are any EACESS or EPERMs or whether there
> > >are any other paths under /dev or /sys which get ENOENT and
> > >should be bind-mounted in.
> > >
> > >Quoting JPS (mailbox at jsierink.nl):
> > >> I have a rfxcom 433 mHz transceiver 
> (http://www.rfxcom.com/epages/78165469.sf/nl_NL/?ObjectPath=/Shops/78165469/Products/14103).
> > >> It is connected via usb and controls some domotica switches on 
> the
> > >> 433mHz frequency.
> > >>
> > >> In the domotica software is shows up as serial device on
> > >>/dev/ttyUSB0
> > >>
> > >> I can't get it to work properly in a lxc container running debian
> > >> jessie.
> > >>
> > >> I added this to the lxc.conf, but with no luck:
> > >> lxc.cgroup.devices.allow: c 189:* rwm
> > >> lxc.mount.entry: /dev/bus/usb/002 dev/bus/usb/002 none
> > >> bind,optional,create=dir
> > >> lxc.mount.entry: /dev/ttyUSB0 dev/ttyUSB0 none
> > >>bind,optional,create=file
> > >>
> > >> Then i gave following command on the host (debian jessie):
> > >> lxc-device add -n 112 /dev/ttyUSB0 /dev/ttyUSB0
> > >>
> > >> Now the device shows up in the lxc container, but now the 
> domotica
> > >> software can only transmit signals, not receive.
> > >>
> > >> On the host:
> > >> root at server:~# lsusb
> > >> Bus 002 Device 005: ID 0403:6001 Future Technology Devices
> > >> International, Ltd FT232 USB-Serial (UART) ICroot at proxmox:~# ls 
> -l
> > >>
> > >> root at server:~/dev/bus/usb/002/005
> > >> crw-rw-r-- 1 root root 189, 132 Oct 10 14:09 /dev/bus/usb/002/005
> > >>
> > >>
> > >> Any idea how to solve this?
> > >>
> > >> Regards, Jasper
> > >
> > >> _______________________________________________
> > >> lxc-users mailing list
> > >> lxc-users at lists.linuxcontainers.org
> > >> http://lists.linuxcontainers.org/listinfo/lxc-users
> > >
> > >_______________________________________________
> > >lxc-users mailing list
> > >lxc-users at lists.linuxcontainers.org
> > >http://lists.linuxcontainers.org/listinfo/lxc-users
> 
> > _______________________________________________
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> > lxc-users at lists.linuxcontainers.org
> > http://lists.linuxcontainers.org/listinfo/lxc-users
> 
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