Subject: Re: [usb-storage] Re: [PATCH pd39] New unusual_devices entry
...
No matter what card I plug in, I never can read the last sector. When
just mounting a filesystem, you usually don't even recognize the
missing last sector, but vol_id (from udev package) explicitly checks
the last sector, an
I can try to test it with ... proposed patch :-D
Yes please.
Do you have a reference where I can get more information about it?
http://en.wikipedia.org/wiki/Binary-coded_decimal
might be what you want.
P: Vendor=10d6 ProdID=1100 Rev= 1.00
In plain hex, these three numbers are x 10D6 110
I include the entry to one usb flash disk that had problem here. I
think is really good to include it on 2.6.14 since its very
trivial
and worked fine here.
I'm not a big fan of doing the entire - range unless you
have
some idea that lots of devices in the range are affected.
I
I include the entry to one usb flash disk that had problem here. I
think is really good to include it on 2.6.14 since its very trivial
and worked fine here.
I'm not a big fan of doing the entire - range unless you have
some idea that lots of devices in the range are affected.
I didn't
I also tried adding the US_FL_SCM_MULT_TARG flag to my device in
unusual_devs.h. That resulted in 8 scsi disks appearing, no matter
what the setting of max_lun is. Each disk was on lun 0 and had
device numbers from 0-7.
Fun, but unsurprising. Apparently that flag adds a three-bit address
ACKed
even before the storage request has been interpreted.
Could/ should the device fill the OUT queue itself so that the hardware
will NAK OUT til the firmware decides to ACK or STALL?
Curiously yours, Pat LaVarre
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> language saying something like this:
>
> If the device is unable to guarantee that the Bulk-Out pipe
> will STALL before all the data have been transferred, then it
> must accept a total of dCBWDataTransf
hat .pdf less
difficult to read accurately, and I thank you again for including me in
this interesting thread.
*"Pat LaVarre" = x50 BBB
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a flaw in the Bulk-only protocol. This should
interest Pat LaVarre,
Yes, thank you, hi.
as you probably already realize, this falls under case (9) of your 13
cases.
Note clearly, sorry, I'm mostly lost for lack of context. I guess I
think you're telling me we have some positive H cor
cludes today in 2.6.6 seeing an icon for
/dev/cdrom on the desktop, linked to nothing, while /dev/scd1 and
/dev/scd0 exist ....
Pat LaVarre
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>From Windows to Linux, servers to mob
days available for this.
The race begins, who first will offer pass thru of URB's from bash
scripts ...
Pat LaVarre
http://linux-pel.blog-city.com/read/598228.htm
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, media-access may include an insertion spin-up, which commonly
kicks up into fifteen whole seconds and beyond.
Pat LaVarre
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nly, mass storage committee) compliance
test should check for this violation. I expect it won't unless someone
volunteers to help it (e.g. by making pass thru to USB from the Linux
command line easy).
Pat LaVarre
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1)
Should we reserve a bit of the unusual_devs.h to say an entry is an
entry known to be sometimes unnecessary?
2)
I think by now here I have heard of devices reporting idVendor Casio or
Lexar that change behaviour significantly, yet still duplicate idProduct
(thought maybe not bcdRev).
Pat
t a credible argument to say bytes/cdb matters, I can't
effectively argue with pointy-haired folk to help free more time/
people/ me to improve it.
Pat LaVarre
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e off bytes/cdb for FS
only and not also for HS?
Pat LaVarre
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olunteer to work towards making the whitelisting more automagic.
Pat LaVarre
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e who want more performance tweak the fragment size
up
(to a reasonably large limit) if they want to try -- this could lead to
device failures or better performance. Letting people shoot
themselves in
the foot is a long-standing tradition in Linux, but I don't want to
leave
the 'non-power us
and tracks. In particular, as
old protocols move into silicon out of gp cpu's, command/ status
overhead temporarily shrinks to near zero.
If you're not just kidding, then will you join me in crafting a series
of relevant experiments? Then we can speak more directly from
published obse
e result, ouch.
3) Many compilers fail to produce the same machine code for both of
these expressions of the same idea e.g. my 32-bit Linux desktop `gcc
--version` 3.2.2 here now, when run as c.a.e. lately helpfully
suggested:
gcc -c -fomit-frame-pointer -O3 -Wall -W hi.c
objdump -dS hi.o
A frustrat
perH's ability to cope with "flash"
> BBB.
Aye. Sounds like SuperH has to talk stall-free BBB. Anybody already
shipping stall-free BBB in volume? I've never yet seen stall-free BBB
be real.
Pat LaVarre
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This SF
ta in before
expected by the host. Or maybe all hosts cope with such creativity in
the device. I don't know.
> I'm not filling with zeros at the moment but it would be a good idea.
Good.
Pat LaVarre
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ally indeterminate results.
> > I've been having a discussion about this off-list with Pat LaVarre and
> > David Brownell. Our general conclusion has been that although the
> > no-stall option is better for the controller driver (since it doesn't have
> >
s storage spec) and
> > this also makes it more reliable.
>
> It's impossible to implement all the commands. More realistic is your
> other option, switching the gadget to use the no-stall option in the
> Bulk-only spec.
>
> I've been having a discussi
... does that fit in here, or is that an N-th
protocol?
> possible to overspeed an ATA disk ...
> proposed filtering ...
> consensus ... not ...
Also good to hear, thanks for talking, Pat LaVarre
P.S. Please ignore Yahoo spam that follows, if any.
__
o
> > > punt all commands with an immediate failure if
> > > they aren't marked "required".
> >
> > > That still _allows_ the driver to implement it
> > > if it wants to, unlike your previous approach.
In particular, passing CDB's thru s
is correct
or not, nor indeed if I am reading the source file we mean.
Click-thru ILLEGAL_REQUEST shows me three source files
agree with me thinking by that jargon we mean x05.
And more or less source files agree that by READ_6
READ_10 WRITE_10 we mean x 08 0A 2A.
Cluelessly, cu
looks to me like fun newbie
torture.
> ...
I trust reply-to-all is proper netiquette here.
Cluelessly, curiously, thankfully yours, Pat LaVarre
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-storage: Bulk data transfer result 0x3
> usb-storage: -- transport indicates command was aborted
> usb-storage: scsi command aborted
> usb-storage: *** thread sleeping.
I presume "usb-storage: command_abort() called" here
is key. That implies the timeout mentioned
previously? Ho
ly has no SCSI pass thru i.e. no analogue
of Linux SG_IO, for the bootable PDT's x 00 05 07 0E.
> my recent suggestion that he try 8020 instead of
> SCSI, where such padding is done.
I replied before I received that, sorry.
> > "L 4096" here might mean
> > dCBWDataT
if we could more easily access
translations to likely Usb bus traffic from Linux
kernel log jargon.
Specifically here now I wonder if "usb-storage:
usb_stor_transfer_partial(): xfer 4096 bytes" means we
copied In x1000 bytes before we saw trouble.
> ...
Curiously yours, Pat
ow rare
in 2.5/2.6 ... I'm not clear on why that means
two-mode passthru isn't the best solution for 2.5/2.6
of usb/storage as it is for 2.4/2.5/2.6 of ide-scsi?
I do personally speak from a history of writing
SG-based apps that prefer raw data.
Pat LaVarre
-Original Mes
for apps that do know
what they are doing, but the default heavily filtered
since so many apps can't cope with reality?
And how are we going to cope when the 64-bit
motherboards change the Windows Inquiry to be,
perhaps, -x "12 0 0 0 20 0" -i x20 instead?
Curiou
l", never
specified, way of speaking Scsi over Usb ...
... except then you must also remember that the de
facto Microsoft Windows 95B redefinition of Usb
forbade ZLP's (zero length packets) Out from the
host.
This approach boiled all of BBB chapter 6 down to one
page.
Pat LaVarre
nce failure. Nor is forging a serial
number. Hence the push to obsolete CBI. (At least,
these are My reasons for Not fighting that push.)
Cheers, Pat LaVarre
-Original Message-
From: BLACKSON Jim [mailto:[EMAIL PROTECTED]]
Sent: Thu 12/12/2002 1:09 AM
To: USB Developers; 'Mat
Lost me again, sorry. What reason do we have to
believe that it is the device, not the host, that
starts dropping data packets when we switch to Usb2 HS
from Usb1 FS?
Maybe it's host hardware, not the host software per
se, that drops packets?
Yours in breathtaking i
SW?
When working with perfect devices, a host thinking that CSW In is Data In is a host
that dropped a Data In packet.
Curiously yours, Pat LaVarre
-Original Message-
From: Greg KH [mailto:[EMAIL PROTECTED]]
Sent: Tue 12/10/2002 2:34 PM
To:
INQ data when asked for less
...
> > Your device doesn't handle small requests, mine large.
Yah. Welcome to the real world of device design by subcontract to people with whom
you do not share fluency in any one human language.
Pat LaVarre
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fixes (1) but not (2), not (3), and not (4).
Hope this helps, thanks in advance, cluelessly yours ... Pat LaVarre
P.S.
Please reply to me person-to-person if reply-to-all was Not correct netiquette here.
Me, I'm listening to email reflected after having been sent to
<[EMAIL PROTECTED]>.
<http://google.yahoo.com/bin/query?p=sff+8070+pdf&hc=0&hs=0>
query.
9) I'm wondering if here I have found one of the few other people on Earth who care
who says what op x23 means when?
Hope this helps, thanks in advance.Pat LaVarre <[EMAIL PROTECTED]>
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