Date: Thu, 15 Apr 2021 05:17:12 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> Cc: "Warner Losh" <imp@bsdimp.com>, freebsd-arch@freebsd.org Subject: Re: New device wiring option Message-ID: <96341.1618463832@critter.freebsd.dk> In-Reply-To: <08A076D6-369B-4CE5-9DE6-012E2708F792@lists.zabbadoz.net> References: <CANCZdfqVbqX1hGVPAwjm%2BaCfhA5t7Z=UajydNzV1gnUmdHVWOw@mail.gmail.com> <08A076D6-369B-4CE5-9DE6-012E2708F792@lists.zabbadoz.net>
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Bjoern A. Zeeb writes:
> Probably USB as well? Having 10 serial consoles on USB Hubs and unplugg=
ing
> one =E2=80=9Cearly=E2=80=9D one it is easy to end up re-numbering the en=
tire chain after a
> reboot. Not sure if this really fits into your problem/implementation d=
omain.
My solution to that specific problem is the following entry in /etc/devd:
attach 500 {
match "device-name" "uftdi[0-9]*";
match "vendor" "0x0403";
match "product" "(0x6001|0x6015)";
action "ln -fs /dev/cua$ttyname /dev/cua_$sernum";
};
=
notify 500 {
match "system" "USB";
match "subsystem" "DEVICE";
match "type" "DETACH";
match "vendor" "0x0403";
match "product" "(0x6001|0x6015)";
action "rm -f /dev/cua_$sernum";
};
-- =
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe =
Never attribute to malice what can adequately be explained by incompetence=
.
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