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Date: Fri, 17 Jul 2015 10:17:25 +0800 From: zhengxing <zhengxing@...k-chips.com> To: Paul Bolle <pebolle@...cali.nl> CC: Mark Brown <broonie@...nel.org>, dgreid@...omium.org, dianders@...omium.org, heiko@...ech.de, sonnyrao@...omium.org, linux-rockchip@...ts.infradead.org, Liam Girdwood <lgirdwood@...il.com>, Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>, linux-kernel@...r.kernel.org, alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCH 1/2] ASoC: rockchip: Add machine driver for max98090 codec Hi Paul, On 2015年07月16日 22:15, Paul Bolle wrote: > > That's exactly how I understood MODULE_ALIAS() to work. > > And it works, in short, because a platform device fires a > "MODALIAS=platform:[...]" uevent when it's created. And userspace uses > that uevent to load the module carrying that alias. > > Let's put it this was. If one does > sudo find /sys -perm -o=r -name uevent -exec grep -H MODALIAS=platform: {} \; > > or > sudo find /sys -perm -o=r -name modalias -exec grep -H platform: {} \; > > (both lists should be similar) > > on the systems this patch is targeting, will > platform:rockchip-snd-max98090 > > then show up? > > Thanks, > > > Paul Bolle > Thank you for your patience and detailed explanation. I tested your two ways and didn't find the "platform:rockchip-snd-max98090" in my device(kernel v3.14), and the driver path is: localhost rockchip-snd-max98090 # pwd /sys/bus/platform/drivers/rockchip-snd-max98090 Thanks. -- 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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