ucom debug not working on releng/14
- Reply: Warner Losh : "Re: ucom debug not working on releng/14"
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Date: Tue, 24 Oct 2023 15:34:19 UTC
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