Date: Mon, 12 Jan 2015 09:56:52 -0700 From: Warner Losh <imp@bsdimp.com> To: John Baldwin <jhb@FreeBSD.org> Cc: Matthias Apitz <guru@unixarea.de>, freebsd-mobile@freebsd.org Subject: Re: power off ath0: <Atheros AR946x/AR948x> Message-ID: <87A73FD4-485B-4F38-B9D2-3F804BED4905@bsdimp.com> In-Reply-To: <54B3FC5F.3070306@FreeBSD.org> References: <20150111080530.GA2035@c720-r276659> <54B3FC5F.3070306@FreeBSD.org>
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--Apple-Mail=_D70D10B8-F0B3-4CE8-83FD-54C8FD21C992 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > On Jan 12, 2015, at 9:54 AM, John Baldwin <jhb@FreeBSD.org> wrote: >=20 > On 1/11/15 3:05 AM, Matthias Apitz wrote: >>=20 >> Hello, >>=20 >> Is there a way to completely power-off the Wifi chip in my Acer C720? >> I tried 'ifconfig ath0 down' which saves around 20 mA. But the LED = stays >> on, which let me think it is still someow on-air. >=20 > Not yet. You could try setting the tunable to disable power for PCI > devices without a driver and not include 'ath' in your kernel config. = I > will (soon) commit a new 'devctl' tool to HEAD that would let you do > 'devctl suspend ath0' to do this. I=E2=80=99d love to see this tied into the forthcoming work on PCIe hot = plug as well, which is one way to power off the slot. But that work seems to be = stalled=E2=80=A6 Warner --Apple-Mail=_D70D10B8-F0B3-4CE8-83FD-54C8FD21C992 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQIcBAEBCgAGBQJUs/zUAAoJEGwc0Sh9sBEAKqUQAJAESrQ+e9wFYFqXYNfBT+DF eYBYTwV6C3d4SY6tr8iTVQA9hzUvSrbeI61Xsq8FHRBJRIftVsEj3gN59B2GLCmp ylQdPyf0GunP2p+gwKdi2F1P83ir/O0epKNVvmlAJIxLVb5d5RucVVtF0l79Pt0e SLfmFRXXBS+gFzRSZYE94XnFtbsij4/DTjWhem0QDsRchlRz8SkigtnpiBSul0uJ cl8dZAPbiFEVNPBBGBUl9dRdCl8Zr5Ji36nmOhoNpQ7aaiWL3x7db8N+F/81KDiC E/2zr+NCUsMhiVdSQzKohmm5OecyUenEoQgm2vxwU+d11kbOea5QGpQfQpNh1oEb 3XWgABbDctQhPgBQ5ZvjQraLzx9X8S/+oxfib1dcAZpbRcWm1iFRTuAR4LLs4KoU qTtqtwhBcRhQGOkk/niX1aCtBChL3odCpBx4ZH+33ACQt5nxlT99FCa/AYOkMnbW mIoyUzWod22gQsm7NYefXV89YjvM1jKpGGx9TbY78I1dTomTaKwfVlsGt2gTavf0 SZtSg05zxWUuVytkgELnPGVekn1C47tD2y8qc5xV4+og8LKLbXBeK9GrPZj80G0t mglwoNI+r+OW4IOT4oiPO4aHSg+l7eAXpwS4OUZVMMsPfqO67ADOEMIgrChr+WAC NPDbn+QMABaHjZscdNop =XQVr -----END PGP SIGNATURE----- --Apple-Mail=_D70D10B8-F0B3-4CE8-83FD-54C8FD21C992--
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