Date: Sun, 6 Oct 2024 16:14:41 -0600 From: Warner Losh <imp@bsdimp.com> To: =?UTF-8?Q?Dag=2DErling_Sm=C3=B8rgrav?= <des@freebsd.org> Cc: Alban Hertroys <haramrae@gmail.com>, Christos Margiolis <christos@freebsd.org>, freebsd-stable@freebsd.org Subject: Re: uaudio device re-attach and persisting dev.pcm.$pcm.bitperfect sysctl Message-ID: <CANCZdfrz4-_-%2Bxcd8P-5d29Z4BSCk2h=b4oMQ1XKoK6rQEFivA@mail.gmail.com> In-Reply-To: <86v7y5vce8.fsf@ltc.des.dev> References: <F61ECC96-6FCB-4A4E-9EEC-8D6AF31A8A62@gmail.com> <86ploiwxw8.fsf@ltc.des.dev> <8745F9FB-9CC1-476C-9445-DC0A7A76165F@gmail.com> <fgpuue37atkszq5hbty2ec47c47nd3dpokrdhl4g4b3qlh4po2@luayn4ocxtpw> <8F8158B8-4D78-4A17-90B7-659ECB9988B5@gmail.com> <86v7y5vce8.fsf@ltc.des.dev>
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On Sun, Oct 6, 2024 at 2:55=E2=80=AFAM Dag-Erling Sm=C3=B8rgrav <des@freebs=
d.org> wrote:
> Alban Hertroys <haramrae@gmail.com> writes:
> > Originally I tried checking for the device using:
> > test "`sysctl -n dev.pcm.${PCM}.%desc`" =3D 'Topping D90SE=E2=80=
=99
> > , but that statement seems to require the double-quotes for test to
> > accept it, which conflict with the double-quotes of the action
> > string. I couldn=E2=80=99t find a way to escape those inner quotes. So =
that=E2=80=99s
> > another issue I ran into, although approaches to use the USB attach
> > event for matching the dsp device to the usb device are clearly
> > superior to reading out a sysctl that=E2=80=99s an effect of it.
>
> You realize you can just put everything in a shell script which devd
> invokes, right?
>
That would also have the advantage of knowing which device(s) were
involved, so it
could be parameterized rather than being hard-coded to something that's
usually true but
might fail if you, for example, start playing with bluetooth headphones
that may or may not
be present at boot...
Warner
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<div dir=3D"ltr"><div dir=3D"ltr"><br></div><br><div class=3D"gmail_quote">=
<div dir=3D"ltr" class=3D"gmail_attr">On Sun, Oct 6, 2024 at 2:55=E2=80=AFA=
M Dag-Erling Sm=C3=B8rgrav <<a href=3D"mailto:des@freebsd.org">des@freeb=
sd.org</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex">Alban Hertroys <<a href=3D"mailto:haramrae@gmail.com" target=3D"_b=
lank">haramrae@gmail.com</a>> writes:<br>
> Originally I tried checking for the device using:<br>
>=C2=A0 =C2=A0 =C2=A0 =C2=A0test "`sysctl -n dev.pcm.${PCM}.%desc`&=
quot; =3D 'Topping D90SE=E2=80=99<br>
> , but that statement seems to require the double-quotes for test to<br=
>
> accept it, which conflict with the double-quotes of the action<br>
> string. I couldn=E2=80=99t find a way to escape those inner quotes. So=
that=E2=80=99s<br>
> another issue I ran into, although approaches to use the USB attach<br=
>
> event for matching the dsp device to the usb device are clearly<br>
> superior to reading out a sysctl that=E2=80=99s an effect of it.<br>
<br>
You realize you can just put everything in a shell script which devd<br>
invokes, right?<br></blockquote><div><br></div><div>That would also have th=
e advantage of knowing which device(s) were involved, so it</div><div>could=
be parameterized rather than being hard-coded to something that's usua=
lly true but</div><div>might fail if you, for example, start playing with b=
luetooth headphones that may or may not</div><div>be present at boot...</di=
v><div><br></div><div>Warner=C2=A0</div></div></div>
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