linux-kernel - Re: sysfs: duplicate filename (usb unusual dev?)

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Message-ID: <2a6e8c0d0805150653j394ec325jf45dd000c86bea8d@mail.gmail.com>
Date:	Thu, 15 May 2008 09:53:08 -0400
From:	"Ian E. Morgan" <penguin.wrangler@...il.com>
To:	"Greg KH" <greg@...ah.com>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: sysfs: duplicate filename (usb unusual dev?)

On Thu, May 15, 2008 at 1:09 AM, Greg KH <greg@...ah.com> wrote:
> On Mon, May 12, 2008 at 11:10:11AM -0400, Ian E. Morgan wrote:
>> My wife got a silly little keychain digital photo frame for a gift.
>> I'm trying to make it work, but no such luck:
>>
>> (This is on vanilla 2.6.25)
>
> These warning messages should be safely ignored (it's odd that I can't
> duplicate this, perhaps it's a CONFIG_SYSFS_DEPRECATED thing...)
>
>> So I don't get the reason for duplicate sysfs nodes, and the scsi
>> device for mass storage never shows up (no /dev/sdb is registered,
>> etc)
>
> Are you sure sd_mod is loaded?
>
> thanks,
>
> greg k-h
>

Yeah, turns out the device really is a piece of CR*P like I figured. I
had to add this to get it to work:

UNUSUAL_DEV(  0x1908, 0x1315, 0x0000, 0x0000,
                "BUILDWIN",
                "Photo Frame",
                US_SC_DEVICE, US_PR_DEVICE, NULL,
                US_FL_GO_SLOW ),

after which the device showed up as a removable media device with an
iso9660 fs! Sheesh! And this fs of course just contained some utter
garbage software for Windows to upload pictures onto the device using
a proprietary HID interface. Can you say "what were they thinking?!"

Having given up at this point, I plugged it into a windows box, and
the thing basically gave windows a conniption fit. Yeah, I think I'll
be throwing it out now. What do you expect for a $9.95 trinket from
China? Sorry for wasting everyone's time.

-- 
Ian Morgan
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