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From: zhengxing <zhengxing@rock-chips.com>
To: Paul Bolle <pebolle@tiscali.nl>
Cc: alsa-devel@alsa-project.org, heiko@sntech.de,
	Takashi Iwai <tiwai@suse.de>,
	linux-kernel@vger.kernel.org, dianders@chromium.org,
	Liam Girdwood <lgirdwood@gmail.com>,
	linux-rockchip@lists.infradead.org,
	Mark Brown <broonie@kernel.org>,
	dgreid@chromium.org, sonnyrao@chromium.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/2] ASoC: rockchip: Add machine driver for max98090 codec
Date: Fri, 17 Jul 2015 10:17:25 +0800	[thread overview]
Message-ID: <55A865B5.7020609@rock-chips.com> (raw)
In-Reply-To: <1437056116.28351.19.camel@tiscali.nl>

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.

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WARNING: multiple messages have this Message-ID (diff)
From: zhengxing@rock-chips.com (zhengxing)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] ASoC: rockchip: Add machine driver for max98090 codec
Date: Fri, 17 Jul 2015 10:17:25 +0800	[thread overview]
Message-ID: <55A865B5.7020609@rock-chips.com> (raw)
In-Reply-To: <1437056116.28351.19.camel@tiscali.nl>

Hi Paul,
On 2015?07?16? 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.

WARNING: multiple messages have this Message-ID (diff)
From: zhengxing <zhengxing@rock-chips.com>
To: Paul Bolle <pebolle@tiscali.nl>
Cc: Mark Brown <broonie@kernel.org>,
	dgreid@chromium.org, dianders@chromium.org, heiko@sntech.de,
	sonnyrao@chromium.org, linux-rockchip@lists.infradead.org,
	Liam Girdwood <lgirdwood@gmail.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>,
	linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/2] ASoC: rockchip: Add machine driver for max98090 codec
Date: Fri, 17 Jul 2015 10:17:25 +0800	[thread overview]
Message-ID: <55A865B5.7020609@rock-chips.com> (raw)
In-Reply-To: <1437056116.28351.19.camel@tiscali.nl>

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.


  parent reply	other threads:[~2015-07-17  2:23 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-15  3:15 [PATCH 0/2] Add codec machine driver for rockchip platform Xing Zheng
2015-07-15  3:15 ` Xing Zheng
2015-07-15  3:15 ` [PATCH 1/2] ASoC: rockchip: Add machine driver for max98090 codec Xing Zheng
2015-07-15  3:15   ` Xing Zheng
2015-07-16  8:05   ` Paul Bolle
2015-07-16  8:05     ` Paul Bolle
2015-07-16  8:05     ` Paul Bolle
2015-07-16 11:00     ` Mark Brown
2015-07-16 11:00       ` Mark Brown
2015-07-16 11:22       ` zhengxing
2015-07-16 11:22         ` zhengxing
2015-07-16 11:22         ` zhengxing
2015-07-16 11:47       ` Paul Bolle
2015-07-16 11:47         ` Paul Bolle
2015-07-16 12:55         ` Mark Brown
2015-07-16 12:55           ` Mark Brown
2015-07-16 14:15           ` Paul Bolle
2015-07-16 14:15             ` Paul Bolle
2015-07-16 15:05             ` Mark Brown
2015-07-16 15:05               ` Mark Brown
2015-07-16 16:22               ` Paul Bolle
2015-07-16 16:22                 ` Paul Bolle
2015-07-16 19:57                 ` Mark Brown
2015-07-16 19:57                   ` Mark Brown
2015-07-17  2:17             ` zhengxing [this message]
2015-07-17  2:17               ` zhengxing
2015-07-17  2:17               ` zhengxing
2015-07-16 11:20     ` zhengxing
2015-07-16 11:20       ` zhengxing
2015-07-16 11:20       ` zhengxing
2015-07-16 11:49       ` Paul Bolle
2015-07-16 11:49         ` Paul Bolle
2015-07-16 11:59         ` zhengxing
2015-07-16 11:59           ` zhengxing
2015-07-16 14:19           ` Paul Bolle
2015-07-16 14:19             ` Paul Bolle
2015-07-16 15:25             ` Jiang Liu
2015-07-16 15:25               ` Jiang Liu
2015-07-16 16:08               ` Paul Bolle
2015-07-16 16:08                 ` Paul Bolle
2015-07-17 18:04   ` Mark Brown
2015-07-17 18:04     ` Mark Brown
2015-07-18  3:51     ` zhengxing
2015-07-18  3:51       ` zhengxing
2015-07-18  4:15       ` zhengxing
2015-07-18  4:15         ` zhengxing
2015-07-18  4:15         ` zhengxing
2015-07-15  3:15 ` [PATCH 2/2] ASoC: rockchip: Add machine driver for rt5645/rt5650 codec Xing Zheng
2015-07-15  3:15   ` Xing Zheng
2015-07-17 18:11   ` Mark Brown
2015-07-17 18:11     ` Mark Brown
2015-07-18  3:52     ` zhengxing
2015-07-18  3:52       ` zhengxing

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