Subj : Re: Javascript restriction in Trixie
To   : All
From : Theo
Date : Tue Dec 09 2025 10:46:38

bp@www.zefox.net wrote:
> [apologies for the wide lines]
> 
> Theo <theom+news@chiark.greenend.org.uk> wrote:
> > 
> > Depending on what kind of device it appears as (serial, keyboard, mass
> > storage, network, ...) see if you can work out what other app might have
> > grabbed it.  ('sudo lsof' is handy here, if it appears as a device node that
> > you can grep for)
> 
> Sudo lsof is loquatious, but not obviously informative. These tests were
> on a Pi5 running up-to-date Bookworm, but the behavior is outwardly the
> same as Trixie on Pi2.

What I'm looking for is something having grabbed the USB device. This is
hard to specify without knowing how the OWON does its USB, but for example
if it was serial I'd 'lsof | grep /dev/tty' and look for things using the
/dev/ttyUSB0 or /devttyACM0 device the OWON probably uses.

Since the OWON app has failed to grab the USB you're looking for other apps
that have grabbed it, ie not at the OWON app.

Theo

--- PyGate Linux v1.5.2
 * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

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