From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Markus Rechberger <mrechberger@gmail.com>,
Greg KH <gregkh@suse.de>, USB list <linux-usb@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [Patch] Increase USBFS Bulk Transfer size
Date: Thu, 13 Oct 2011 20:05:26 +0100 [thread overview]
Message-ID: <20111013200526.74fcc87b@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1110131417070.2026-100000@iolanthe.rowland.org>
> For my part, I don't much mind raising the limit from 16 KB to 32 KB.
> 48 KB may be unnecessary, especially since one of the devices doesn't
> even work when the transfer buffer is that large.
>
> However it's just a work-around, not a real solution to the underlying
> problem (whatever that problem turns out to be). Part of the reason
> for keeping the limit low is that it shouldn't matter, since people
> ought to be able to use a bunch of small transfers rather than one
> large transfer. Apparently that justification doesn't work with these
> webcams, although there's no known reason why it shouldn't.
>
> But I'm not the person in charge of these decisions...
Well if the underlying solution is crap hardware with no work around its
a bit hard to avoid. A more conservative approach would be to put the
'constant' in sysfs where it belongs so it can be adjusted and special
cased.
Alan
next prev parent reply other threads:[~2011-10-13 19:07 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-12 12:36 Markus Rechberger
2011-10-12 12:46 ` Markus Rechberger
2011-10-12 13:48 ` Sergei Shtylyov
2011-10-12 14:17 ` Greg KH
2011-10-12 16:59 ` Markus Rechberger
2011-10-12 20:33 ` Greg KH
2011-10-12 21:48 ` Markus Rechberger
2011-10-12 22:09 ` Markus Rechberger
2011-10-13 4:03 ` Manu Abraham
2011-10-13 4:59 ` Markus Rechberger
2011-10-13 5:46 ` Manu Abraham
2011-10-13 8:37 ` Markus Rechberger
2011-10-13 9:29 ` Markus Rechberger
2011-10-16 9:22 ` James Courtier-Dutton
2011-10-13 9:34 ` Manu Abraham
2011-10-13 9:39 ` Markus Rechberger
2011-10-13 14:58 ` Alan Stern
2011-10-13 15:19 ` Markus Rechberger
2011-10-13 16:01 ` Chris Friesen
2011-10-13 16:12 ` Markus Rechberger
2011-10-13 16:25 ` Chris Friesen
2011-10-13 18:27 ` Markus Rechberger
2011-10-13 20:07 ` Alan Stern
2011-10-13 20:17 ` Markus Rechberger
2011-10-13 18:21 ` Alan Stern
2011-10-13 19:05 ` Alan Cox [this message]
2011-10-14 19:21 ` Johannes Stezenbach
2011-10-14 20:19 ` Alan Stern
2011-10-14 22:45 ` Johannes Stezenbach
2011-10-15 11:45 ` Markus Rechberger
2011-10-15 17:47 ` Valdis.Kletnieks
2011-10-15 19:08 ` Alan Stern
2011-10-15 19:04 ` Alan Stern
2011-10-16 9:10 ` Johannes Stezenbach
2011-10-16 14:18 ` Alan Stern
2011-10-17 18:11 ` Johannes Stezenbach
2011-10-17 18:22 ` Alan Stern
[not found] ` <CAAMvbhFNTQeuJBgsDB9Y5ODc_b2O0X=oP_3uwRpWUREFS9qufA@mail.gmail.com>
2011-10-14 2:47 ` Markus Rechberger
2011-10-14 3:42 ` Markus Rechberger
2011-10-14 3:48 ` Markus Rechberger
2011-10-14 5:47 ` Valdis.Kletnieks
2011-10-14 6:23 ` Markus Rechberger
2011-10-14 8:51 ` James Courtier-Dutton
2011-10-14 15:38 ` Markus Rechberger
2011-10-14 14:05 ` Alan Stern
2011-10-14 14:33 ` Greg KH
2011-11-07 18:52 ` Sarah Sharp
2011-11-07 19:12 ` Alan Stern
2011-11-07 20:18 ` Sarah Sharp
2011-11-07 20:37 ` Brink, Peter
2011-11-07 20:53 ` Alan Stern
2011-11-07 21:49 ` Greg KH
2011-11-07 23:07 ` Sarah Sharp
2011-11-08 1:44 ` Alan Stern
2011-11-07 19:16 ` Tim Vlaar
2011-11-07 19:55 ` Alan Stern
2011-11-07 20:13 ` Tim Vlaar
2011-10-17 18:38 ` Alan Stern
2011-10-17 19:07 ` Markus Rechberger
2011-10-12 18:00 ` Mihai Moldovan
2011-10-12 20:36 ` Greg KH
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