From: Sujith <m.sujith@gmail.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>,
Sujith <m.sujith@gmail.com>, Martin Schleier <drahemmaps@gmx.net>,
<linux-wireless@vger.kernel.org>, <dsd@gentoo.org>,
<linville@tuxdriver.com>, <kune@deine-taler.de>,
<linux-usb@vger.kernel.org>, <gregkh@suse.de>
Subject: Re: Override endpoint attributes (was: RE: [PATCH] zd1211rw: change endpoint types of EP_REGS_OUT and EP_INT_IN from interrupt to bulk)
Date: Wed, 9 Feb 2011 07:58:17 +0530 [thread overview]
Message-ID: <19793.64449.344588.240418@gargle.gargle.HOWL> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1102081011030.2100-100000@iolanthe.rowland.org>
Alan Stern wrote:
> There are at least three problems that I can see. First, the device
> doesn't disconnect from and reconnect to the USB bus when it starts
> using new firmware.
Yes, ath9k_htc has this problem.
> Second, the device loses its firmware when it is
> reset.
Agreed again, this is a problem with ath9k_htc.
> The first two problems are the device's fault, and the third is the
> driver's fault. None of them are the fault of usbcore.
Indeed, which is why this dirty hack is done in the driver.
And it was done to fix a similar issue - high CPU usage when scanning.
But do you have any suggestion for such broken devices ?
The FW changes the type from Interrupt to Bulk, but can the host
driver continue to use Interrupt URBs and use the URB_NO_INTERRUPT trick
that you have mentioned ?
Sujith
next prev parent reply other threads:[~2011-02-09 2:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-06 10:27 Override endpoint attributes (was: RE: [PATCH] zd1211rw: change endpoint types of EP_REGS_OUT and EP_INT_IN from interrupt to bulk) Martin Schleier
2011-02-06 11:33 ` Jussi Kivilinna
2011-02-06 12:07 ` Sujith
2011-02-06 15:46 ` Alan Stern
2011-02-06 16:15 ` Sujith
2011-02-06 20:04 ` Alan Stern
2011-02-08 12:03 ` Jussi Kivilinna
2011-02-08 15:21 ` Alan Stern
2011-02-08 19:08 ` Jussi Kivilinna
2011-02-09 2:28 ` Sujith [this message]
2011-02-09 15:19 ` Alan Stern
2011-02-09 16:30 ` Sujith
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