From: "Rafał Miłecki" <zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Peter Chen <hzpeterchen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Greg Kroah-Hartman
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
"linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"open list:LED SUBSYSTEM"
<linux-leds-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH 0/2] usb: add HCD providers
Date: Wed, 13 Jul 2016 07:21:09 +0200 [thread overview]
Message-ID: <CACna6rw6QOuY247qvDmO4mKrW3y4yXoeM3qr8SXAwn3CuYAMpw@mail.gmail.com> (raw)
In-Reply-To: <20160713045140.GA29915@shlinux2>
On 13 July 2016 at 06:51, Peter Chen <hzpeterchen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> On Tue, Jul 12, 2016 at 02:35:18PM +0200, Rafał Miłecki wrote:
>> I was working on an "usbport" LED trigger driver and specifying its
>> default state in DT. I realized I can't really determine numbering of
>> USB ports on any device as it depends on compiled drivers and the
>> loading orders.
>>
>> It means that my physical USB port can be e.g. 1-1 or 2-1 depending on
>> my current config/setup. I needed a way to specify a particular HCD in
>> DT and then hardcode port number (as this part doesn't change).
>>
>
> I have a question:
>
> What does your "usbport" LED trigger for? What kinds of information
> you would like to show on LED?
It's a trigger that turns on LED whenever USB device appears at
specified USB port. There are plenty of home routers that have USB
labeled LED(s). To support them nicely, first of all we need a trigger
that will watch for USB subsystem events. Secondly we need a way to
setup its initial state correctly as most users don't want to play
with sysfs on their own.
I sent usbport trigger in:
[PATCH] leds: trigger: Introduce an USB port trigger
<1468239883-22695-1-git-send-email-zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
https://lkml.org/lkml/2016/7/11/305
You may read commit message and ledtrig-usbport.txt for more details.
--
Rafał
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next prev parent reply other threads:[~2016-07-13 5:21 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-12 12:35 [PATCH 0/2] usb: add HCD providers Rafał Miłecki
2016-07-12 12:35 ` [PATCH 1/2] usb: core: add support for " Rafał Miłecki
2016-07-12 12:35 ` Rafał Miłecki
[not found] ` <1468326921-26485-2-git-send-email-zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-08-09 13:56 ` Greg Kroah-Hartman
2016-08-09 13:56 ` Greg Kroah-Hartman
2016-07-12 12:35 ` [PATCH 2/2] ohci-platform: register HCD provider Rafał Miłecki
2016-07-12 12:35 ` Rafał Miłecki
2016-07-12 12:35 ` [PATCH PROOF OF CONCEPT 3/2] trigger: ledtrig-usbport: read initial state from DT Rafał Miłecki
2016-07-12 12:35 ` Rafał Miłecki
2016-07-13 4:51 ` [PATCH 0/2] usb: add HCD providers Peter Chen
2016-07-13 5:21 ` Rafał Miłecki [this message]
[not found] ` <CACna6rw6QOuY247qvDmO4mKrW3y4yXoeM3qr8SXAwn3CuYAMpw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-07-13 8:02 ` Peter Chen
2016-07-13 9:31 ` Rafał Miłecki
[not found] ` <1468326921-26485-1-git-send-email-zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-07-13 12:42 ` [PATCH V2 0/1] " Rafał Miłecki
[not found] ` <1468413734-9569-1-git-send-email-zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-07-13 12:42 ` [PATCH V2 1/1] usb: core: add support for " Rafał Miłecki
2016-07-13 12:42 ` Rafał Miłecki
2016-07-13 12:42 ` [PATCH V2 PROOF OF CONCEPT 2/1] trigger: ledtrig-usbport: read initial state from DT Rafał Miłecki
2016-07-13 12:42 ` Rafał Miłecki
[not found] ` <1468413734-9569-3-git-send-email-zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-07-13 14:48 ` Jacek Anaszewski
2016-07-13 14:48 ` Jacek Anaszewski
[not found] ` <578654A7.2020909-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-07-13 15:05 ` Rafał Miłecki
2016-07-13 15:05 ` Rafał Miłecki
2016-07-13 13:20 ` [PATCH V2 0/1] usb: add HCD providers Felipe Balbi
[not found] ` <87lh15isi7.fsf-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2016-07-13 13:34 ` Rafał Miłecki
[not found] ` <CACna6rxGN5evQhRpNORUP4RP3-pMa292pQW=4=VWLLnzJyhJJw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-07-13 13:50 ` Felipe Balbi
[not found] ` <87inw9ir4k.fsf-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2016-07-13 14:40 ` Rafał Miłecki
2016-07-14 9:48 ` Peter Chen
2016-07-14 10:05 ` Felipe Balbi
2016-07-14 15:52 ` Rafał Miłecki
2016-07-15 2:28 ` Peter Chen
2016-07-15 5:48 ` Rafał Miłecki
2016-07-15 6:22 ` Peter Chen
2016-07-15 9:35 ` Rafał Miłecki
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