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Date:      Tue, 24 Oct 2023 08:34:19 -0700
From:      bob prohaska <fbsd@www.zefox.net>
To:        freebsd-arm@freebsd.org
Subject:   ucom debug not working on releng/14
Message-ID:  <ZTfj%2B1Qk63qfn%2BJp@www.zefox.net>

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A Pi2 running armv7 releng/14 reports

sysctl: unknown oid 'hw.usb.ucom.debug' at line 10

when booting. 

The intent was to understand why it drops ssh connections
when they are used to communicate with an ftdi usb-serial
adapter.  A few other hosts running -current accept the
debug setting and generate copious output in response.

Man pages suggest the option is available on stable,
-current and releng/, but it seems to actually work
only on -current, at least for armv7.

Thanks for reading, and any hints what might be done wrong.

bob prohaska
 



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