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Date:      Fri, 12 Jan 2024 14:14:43 -0800
From:      bob prohaska <fbsd@www.zefox.net>
To:        Mark Millard <marklmi@yahoo.com>
Cc:        freebsd-arm@freebsd.org
Subject:   Re: USB-serial adapter suggestions needed
Message-ID:  <ZaG50xhlQhIOsDwB@www.zefox.net>
In-Reply-To: <B3EF009B-F7FE-4D2D-A266-D064C82E0DFF@yahoo.com>
References:  <041F74B4-3D44-4364-9EBD-9F21A4F3B313@yahoo.com> <ZaBLnwaHWYedwY9m@www.zefox.net> <902798B1-2B66-4ECD-BDAC-195C85066FE6@yahoo.com> <8B4C76B2-707E-4978-9CB3-5D547303A7E5@yahoo.com> <ZaFoY58MqBv9hX5b@www.zefox.net> <A1F3092A-CEB1-44DE-ADB3-F45113004B34@yahoo.com> <ZaGQfy8u2xYzztri@www.zefox.net> <482FA770-89E8-42E8-945E-B662AD564AFE@yahoo.com> <ZaGxMA23qXBSC4Jj@www.zefox.net> <B3EF009B-F7FE-4D2D-A266-D064C82E0DFF@yahoo.com>

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On Fri, Jan 12, 2024 at 01:45:04PM -0800, Mark Millard wrote:
> 
> So each of the signals result in a full
> 
> ucom_close: tp=. . .
> . . .
> ucom_cfg_close:
> 
> sequence?
Yes, that part seemed quite consistent. Here's an example

Jan 12 10:47:43 nemesis kernel: ucom_param: sc = 0xffffa00002466088
Jan 12 10:47:43 nemesis kernel: ucom_ioctl: cmd = 0x8004667e
Jan 12 10:47:43 nemesis kernel: ucom_ioctl: cmd = 0x8004667d
Jan 12 10:47:43 nemesis kernel: ucom_get_data: cnt=0
Jan 12 10:47:44 nemesis kernel: ucom_outwakeup: sc = 0xffffa00002466088
Jan 12 10:47:44 nemesis kernel: ucom_get_data: cnt=1
Jan 12 10:47:44 nemesis kernel: ucom_get_data: cnt=0
Jan 12 10:47:44 nemesis kernel: ucom_inwakeup: tp=0xffffa00001979800
Jan 12 10:57:36 nemesis kernel: ucom_close: tp=0xffffa00001979800
Jan 12 10:57:36 nemesis kernel: ucom_shutdown:
Jan 12 10:57:36 nemesis kernel: ucom_dtr: onoff = 0
Jan 12 10:57:36 nemesis kernel: ucom_line_state: on=0x00, off=0x01
Jan 12 10:57:36 nemesis kernel: ucom_rts: onoff = 1
Jan 12 10:57:36 nemesis kernel: ucom_line_state: on=0x02, off=0x00
Jan 12 10:57:36 nemesis kernel: ucom_cfg_close:
Jan 12 10:57:44 nemesis kernel: ucom_open: tp = 0xffffa00001979800
Jan 12 10:57:44 nemesis kernel: ucom_cfg_open:
Jan 12 10:57:44 nemesis kernel: ucom_dtr: onoff = 1
Jan 12 10:57:44 nemesis kernel: ucom_line_state: on=0x01, off=0x00

The lines before ucom_close... seemed to vary slightly in order but
not content. My method was crude, to say the least, however. I
just used vi to search a version of messages with all but
lines containing ucom_ stripped out. There was nary a twitch
in the lines following ucom_shutdown, some ordering changes
in the lines above. 

Thanks for writing,

bob prohaska
 




> If yes, that answers my question. Otherwise I'd like to 
> see the variations.
> 
> ===
> Mark Millard
> marklmi at yahoo.com
> 
> 



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