From: Oliver Neukum <oneukum@suse.de>
To: Vikas Bansal <vikas.bansal@samsung.com>
Cc: netdev@vger.kernel.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, sumit.batra@samsung.com
Subject: Re: [PATCH] BugFix in XHCI controller driver for scatter gather DMA
Date: Mon, 21 Dec 2015 13:50:24 +0100 [thread overview]
Message-ID: <1450702224.17967.18.camel@suse.de> (raw)
In-Reply-To: <1450699494-4598-1-git-send-email-vikas.bansal@samsung.com>
On Mon, 2015-12-21 at 17:34 +0530, Vikas Bansal wrote:
> Pre-Condition
> At the time of reset resume of a USB device, both self and bus powered devices might go to a low power state or power off state depending on the acceptable suspend time power of the system.
> In case the device experiences a power glitch or completely powers off during suspend-resume, the device will lose its internal state and hence it'll again need a set interface from class driver on reset resume operation.
>
> Issue
> So far our experiments were based on a USB gadget working on cdc_eem protocol.
> We have seen that device is unable to continue the packet transfer on bulk endpoints after the reset resume operation.
>
> Solution
> We have added a .reset_resume function for cdc_eem protocol which sends a set interface command on the Control endpoint. And calls the existing usbnet_resume thereafte
Hi,
something is wrong with your subject line. Could you fix
that and resend?
Regards
Oliver
prev parent reply other threads:[~2015-12-21 12:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-21 12:04 [PATCH] BugFix in XHCI controller driver for scatter gather DMA Vikas Bansal
2015-12-21 12:50 ` Oliver Neukum [this message]
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=1450702224.17967.18.camel@suse.de \
--to=oneukum@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=sumit.batra@samsung.com \
--cc=vikas.bansal@samsung.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).