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Date: Mon, 14 May 2007 02:46:10 +0200 From: Soeren Sonnenburg <kernel@....de> To: Alistair John Strachan <s0348365@....ed.ac.uk> Cc: linux-usb-devel@...ts.sourceforge.net, Linux Kernel <linux-kernel@...r.kernel.org>, maxk@...lcomm.com Subject: Re: converting appletouch to usb autosuspend... On Sat, 2007-05-12 at 22:47 +0100, Alistair John Strachan wrote: > On Saturday 12 May 2007 19:51:26 Soeren Sonnenburg wrote: > > Dear all, [...] > > While we are at it usb related powerhogs on this macbook pro are > > uhci_hcd (usb keyboard) and usb_hcd_poll_rh_status (rh_timer_func) > > too... > > I've found that hci_usb also hogs power on the Macbook; blacklisting this > module cuts down HZ considerably. I also found appletouch consumed ticks, I guess without loading appletouch ? Then there really is something in there that needs to be fixed.. > just as you did. What did you use instead of hci_usb then ? usbkbd ? This won't give you the special keys etc... > uhci_hcd then drops to noise; my Macbook's sitting on 10W with the backlight > on minimum, which is about what it can manage in OS X on maximum life > settings. Thats quite some improvement... Soeren. -- Sometimes, there's a moment as you're waking, when you become aware of the real world around you, but you're still dreaming. - 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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