From: Felipe Balbi <me-uiRdBs8odbtmTBlB0Cgj/Q@public.gmane.org>
To: Kan-Ru Chen <kanru-suFqJ7M7tPnYtjvyW6yDsg@public.gmane.org>
Cc: Wang Hui <Hui.Wang-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org>,
tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org,
felipe.balbi-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 2/2] USB: musb: omap2430: add mode change from A to B
Date: Thu, 22 Jul 2010 19:40:44 +0300 [thread overview]
Message-ID: <4C48748C.8040307@felipebalbi.com> (raw)
In-Reply-To: <877hknwnrb.fsf-ONHucydYG54+Yz5RL6G0bA@public.gmane.org>
On 07/22/2010 06:16 PM, Kan-Ru Chen wrote:
> Just curious about how to do this in a more automatic way.
>
> I think setup a daemon to monitor the musb_hdrc mode and try to alter
> it's state via sysfs interface will work, but it may be error prone and
> not always desirable solution.
>
> Can we query the id pin state periodically in the kernel and change to
> corresponding role?
the transceiver has an interrupt for id pin changes. You can use that
instead of polling.
--
balbi
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
WARNING: multiple messages have this Message-ID (diff)
From: me@felipebalbi.com (Felipe Balbi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] USB: musb: omap2430: add mode change from A to B
Date: Thu, 22 Jul 2010 19:40:44 +0300 [thread overview]
Message-ID: <4C48748C.8040307@felipebalbi.com> (raw)
In-Reply-To: <877hknwnrb.fsf@anar.kanru.info>
On 07/22/2010 06:16 PM, Kan-Ru Chen wrote:
> Just curious about how to do this in a more automatic way.
>
> I think setup a daemon to monitor the musb_hdrc mode and try to alter
> it's state via sysfs interface will work, but it may be error prone and
> not always desirable solution.
>
> Can we query the id pin state periodically in the kernel and change to
> corresponding role?
the transceiver has an interrupt for id pin changes. You can use that
instead of polling.
--
balbi
next prev parent reply other threads:[~2010-07-22 16:40 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-15 10:23 [PATCH 1/2] USB: musb: add two states to handle vbus error Wang Hui
2010-03-15 10:23 ` Wang Hui
[not found] ` <1268648622-28529-1-git-send-email-Hui.Wang-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org>
2010-03-15 10:23 ` [PATCH 2/2] USB: musb: omap2430: add mode change from A to B Wang Hui
2010-03-15 10:23 ` Wang Hui
[not found] ` <1268648622-28529-2-git-send-email-Hui.Wang-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org>
2010-03-15 11:22 ` Sergei Shtylyov
2010-03-15 11:22 ` Sergei Shtylyov
[not found] ` <4B9E187E.6090802-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>
2010-03-15 16:10 ` Felipe Balbi
2010-03-15 16:10 ` Felipe Balbi
2010-03-16 10:13 ` wanghui
2010-03-16 10:13 ` wanghui
[not found] ` <4B9F59DE.4070807-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org>
2010-03-16 14:46 ` Felipe Balbi
2010-03-16 14:46 ` Felipe Balbi
2010-07-22 15:16 ` Kan-Ru Chen
2010-07-22 15:16 ` Kan-Ru Chen
[not found] ` <877hknwnrb.fsf-ONHucydYG54+Yz5RL6G0bA@public.gmane.org>
2010-07-22 16:40 ` Felipe Balbi [this message]
2010-07-22 16:40 ` Felipe Balbi
2010-07-23 4:38 ` Kan-Ru Chen
2010-07-23 4:38 ` Kan-Ru Chen
2010-03-16 10:49 ` [PATCH 1/2] USB: musb: add two states to handle vbus error wanghui
2010-03-16 10:49 ` wanghui
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4C48748C.8040307@felipebalbi.com \
--to=me-uirdbs8odbtmtblb0cgj/q@public.gmane.org \
--cc=Hui.Wang-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org \
--cc=felipe.balbi-xNZwKgViW5gAvxtiuMwx3w@public.gmane.org \
--cc=kanru-suFqJ7M7tPnYtjvyW6yDsg@public.gmane.org \
--cc=linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
--cc=linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.