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Message-ID: <48CE217A.1080409@tuffmail.co.uk> Date: Mon, 15 Sep 2008 09:48:58 +0100 From: Alan Jenkins <alan-jenkins@...fmail.co.uk> To: Sitsofe Wheeler <sitsofe@...oo.com> CC: linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: Turning off camera also kills card reader on EeePC 900 Sitsofe Wheeler wrote: > When running Ubuntu from an SD card issuing > echo 0 > /sys/devices/platform/eeepc/camera > as root will cause the camera to be turned off AND the SD card to > immediately disappear (which is rather fatal when you are using it). It's > hard to know if this is intended behaviour by the BIOS (given that they > are both USB devices) or a mistake in the platform driver... It's a bug either way (a regression from the 701 hardware). I think you should be able to isolate it. Firstly, I understand these kill-switches are supposed to be persistent over reboots. You should check that the SD card stays disabled when you reboot. Next, these settings are also exposed in the BIOS configuration screen, right? If it's the same as my 701 then the BIOS will have a separate option for disabling the cardreader. So you could see if the platform driver "camera" switch is simply disabling and enabling the two switches together. Or if there's only a BIOS option for the camera, and not the SD card, then you should test whether it disables the SD card. Regards Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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