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====== Proxmox - USB - Pass USB device to LXC Container ======

===== List USB devices on the Host =====

<code bash>
ls -l /dev/ttyU*
</code>

returns:

<code bash>
crw-rw-rw- 1 root dialout 188, 0 Jul  8 11:46 /dev/ttyUSB0
crw-rw-rw- 1 root dialout 188, 1 Jul  8 11:46 /dev/ttyUSB1
</code>

----

===== Client Configuration =====

On the Client

<file bash /etc/pve/lxc/[CTID].conf>
lxc.cgroup.devices.allow: c 188:* rwm
lxc.mount.entry: /dev/ttyUSB0 dev/ttyUSB0 none bind,optional,create=file
lxc.mount.entry: /dev/ttyUSB1 dev/ttyUSB1 none bind,optional,create=file
</file>

<WRAP info>
**NOTE:** See https://pve.proxmox.com/wiki/Manual:_pct.conf.
</WRAP>


----

===== List USB devices on the Client =====

<code bash>
ls -l /dev/ttyU*
</code>

returns:

<code bash>
srv:dev# ls -l ttyU*
crw-rw-rw- 1 root dialout 188, 0 Jul  8 11:46 ttyUSB0
crw-rw-rw- 1 root dialout 188, 1 Jul  8 11:46 ttyUSB1
</code>

----

===== Display USB =====

<code bash>
cat ttyUSB1
</code>

returns:

<code bash>
TODO
</code>


<WRAP info>
**NOTE:**  If an error is seen: <code bash>
Operation not permitted
</code>

  * Try to change this line: <file bash>
    lxc.cgroup.devices.allow: c 188:* rwm
</file>    

to:

  * <file bash>
lxc.cgroup2.devices.allow: c 188:* rwm
</file>

  * This is needed because Proxmox 7 uses the new default [[https://pve.proxmox.com/pve-docs/chapter-pct.html#pct_cgroup_compat|cgroup version 2]].

</WRAP>

----

===== References =====

https://pve.proxmox.com/wiki/Manual:_pct.conf