From: "Tanya Brokhman" <tlinder@codeaurora.org>
To: <balbi@ti.com>
Cc: "'Alan Stern'" <stern@rowland.harvard.edu>,
"'Sarah Sharp'" <sarah.a.sharp@linux.intel.com>, <greg@kroah.com>,
<linux-usb@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>,
<ablay@codeaurora.org>,
"'open list'" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH v12 7/8] usb: Adding SuperSpeed support to dummy_hcd
Date: Tue, 24 May 2011 13:43:09 +0300 [thread overview]
Message-ID: <011d01cc19ff$616055c0$24210140$@org> (raw)
In-Reply-To: <20110524103325.GC14371@legolas.emea.dhcp.ti.com>
Hi Felipe
> > Yes :) The driver->speed is updated in usb_composite_probe() if
> > CONFIG_USB_GADGET_SUPERSPEED is defined.
> >
> > So, are we ok with this solution? The module parameter I mean?
> > Are you going to try the v13 in your branch? Please let me know how
> it
> > goes and of course if you have any comments.
>
> I think it still gives the possibility for failure. I would rather not
> take that until all gadget drivers are fixed. We can help you doing
> that and we only change driver->speed after all gadget drivers have
> their "sensible defaults" SuperSpeed descriptors.
By "until all gadget drivers are fixed" you mean until all gadget drivers
provide SS descriptors? This will take for ever...
I wasn't about to modify all gadget drivers and to add SS descriptors for
them. I can add default values (as generate_ss_descriptors() did if you
remember) but I don't think this is the right approach because as you said -
different gadget drivers might have different SS descriptors and I don't
feel confident enough to set these values. Nor do I have the ability to test
each of the gadget drivers the way I would like to after this change.
The only gadget driver I felt confident adding SS descriptors for is UASP,
which I tested properly.
Actually if the CONFIG_USB_GADGET_SUPERSPEED is turned off, which is the
default of it, the speed won't be updated and all these series won't be
functional so I don't see any possibilities for failure in such
configuration. Or am I missing something?
Best regards,
Tanya Brokhman
Consultant for Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum
next prev parent reply other threads:[~2011-05-24 10:41 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1306132882-9668-1-git-send-email-tlinder@codeaurora.org>
2011-05-23 6:41 ` [PATCH/RESEND v12 1/8] usb: Add usb_endpoint_descriptor to be part of the struct usb_ep Tatyana Brokhman
2011-05-23 6:41 ` [PATCH v12 2/8] usb: Configure endpoint according to gadget speed Tatyana Brokhman
2011-05-23 6:41 ` [PATCH/RESEND v12 3/8] usb: Modify existing gadget drivers to use config_ep_by_speed() instead of ep_choose Tatyana Brokhman
2011-05-23 6:41 ` [PATCH v12 4/8] usb:gadget: Add SuperSpeed support to the Gadget Framework Tatyana Brokhman
2011-05-23 12:31 ` Sebastian Andrzej Siewior
2011-05-23 22:18 ` Mike Frysinger
2011-05-24 5:10 ` Tanya Brokhman
2011-05-24 5:14 ` Mike Frysinger
2011-05-24 5:37 ` Tanya Brokhman
2011-05-24 17:12 ` Mike Frysinger
2011-05-23 6:41 ` [PATCH/RESEND v12 5/8] usb: Add streams support to the gadget framework Tatyana Brokhman
2011-05-23 6:41 ` [PATCH v12 6/8] usb:dummy_hcd: use the shared_hcd infrastructure Tatyana Brokhman
2011-05-23 6:41 ` [PATCH v12 7/8] usb: Adding SuperSpeed support to dummy_hcd Tatyana Brokhman
2011-05-23 7:05 ` Felipe Balbi
2011-05-23 7:20 ` Tanya Brokhman
2011-05-23 7:21 ` Felipe Balbi
2011-05-23 8:18 ` Tanya Brokhman
2011-05-23 8:32 ` Felipe Balbi
2011-05-23 9:16 ` Tanya Brokhman
2011-05-23 14:22 ` Alan Stern
2011-05-23 16:08 ` Sarah Sharp
2011-05-23 16:28 ` Alan Stern
2011-05-23 21:06 ` Felipe Balbi
2011-05-23 21:21 ` Alan Stern
2011-05-24 5:53 ` Tanya Brokhman
2011-05-24 10:18 ` Felipe Balbi
2011-05-24 10:31 ` Tanya Brokhman
2011-05-24 10:33 ` Felipe Balbi
2011-05-24 10:43 ` Tanya Brokhman [this message]
2011-05-24 14:20 ` Alan Stern
2011-05-25 4:46 ` Tanya Brokhman
2011-05-25 9:21 ` Felipe Balbi
2011-05-25 9:26 ` Tanya Brokhman
2011-05-25 9:27 ` Felipe Balbi
2011-05-25 9:43 ` Tanya Brokhman
2011-05-25 9:49 ` Felipe Balbi
2011-05-25 10:03 ` Tanya Brokhman
2011-05-25 10:29 ` Felipe Balbi
2011-05-25 10:52 ` Tanya Brokhman
2011-05-25 11:23 ` Felipe Balbi
2011-05-25 11:33 ` Tanya Brokhman
2011-05-25 12:42 ` Felipe Balbi
2011-05-25 14:23 ` Alan Stern
2011-05-25 14:39 ` Alan Stern
2011-05-28 11:05 ` Tanya Brokhman
2011-05-28 14:15 ` Alan Stern
2011-06-07 10:33 ` Felipe Balbi
2011-05-25 17:07 ` Brokhman Tatyana
2011-05-25 17:29 ` Alan Stern
2011-05-25 18:13 ` Brokhman Tatyana
2011-05-25 18:59 ` Alan Stern
2011-05-26 6:51 ` Tanya Brokhman
2011-05-26 14:31 ` Alan Stern
2011-05-26 16:15 ` Brokhman Tatyana
2011-05-25 9:20 ` Felipe Balbi
2011-05-23 15:55 ` Sarah Sharp
2011-05-23 14:20 ` Alan Stern
2011-05-23 14:18 ` Alan Stern
2011-05-23 6:41 ` [PATCH v12 8/8] usb:gadget: coding style fixes Tatyana Brokhman
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