Date: Mon, 12 Jul 2004 23:55:19 +0900 From: OGAWA Takaya <t-ogawa@triaez.kaisei.org> To: Takahashi Yoshihiro <nyan@jp.FreeBSD.org> Cc: njl@FreeBSD.org Subject: Re: Panasonic acpi driver Message-ID: <86llhpz354.wl.t-ogawa@triaez.kaisei.org> In-Reply-To: <20040712.200815.74734634.nyan@jp.FreeBSD.org> References: <20040711.182654.59665900.nyan@jp.FreeBSD.org> <868ydq61q0.wl.t-ogawa@triaez.kaisei.org> <20040712.200815.74734634.nyan@jp.FreeBSD.org>
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At Mon, 12 Jul 2004 20:08:15 +0900 (JST), Takahashi Yoshihiro wrote: > > > +#define HKEY_LCD_BRIGHTNESS_SHIFT (5 - HKEY_LCD_BRIGHTNESS_BITS) > > > ^ Did you mean '8' here? > > On my CF-R1N it must be 8. The object seems to have 8bit range > > but I only used higher 4bits because I just don't want to hit the > > key ~255 times to turn off the LCD light. > > Yes. But, my CF-R3 is enough bright even though it is 5. So, I use > only 5 bits to change more smoothly. Could you clarify a little bit more? Does it mean that actual valid range for brightness is 0 to 31 instead of 0 to 255? In other words, does your LCD luminance look same between 31 and 255? In my case, LCD gets brighter linearly (roughly) from 0 to 255. > I put the result of acpidump to > http://home.jp.freebsd.org/~nyan/r3.dst.gz They seemed to change the way of controlling LCD luminance a bit. If your answer to my above question is "yes", perhaps we need a sysctl to customize what is the suitable range for brightness value. So far CF-R1N (my laptop) and CF-R2A (one user reported to me before) have the range of 0~255, and CF-R3 (yours) has 0~31. ---------- おがわ たかや t-ogawa@triaez.kaisei.org
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