On Wed, 11 Oct 2006, Alex Corcoles wrote:
> Hi,
>
> Sorry, my mails to the list are rejected because my domain has no
> postmaster account, it seems, so I'm afraid this will reach just you.
>
> Alan Stern wrote:
> > On Wed, 11 Oct 2006, Alex Corcoles wrote:
> >
> >
> >> Hi,
> >>
> >> Concerning the setting max_sectors to 64 on a Nokia 6131, I have a Nokia
> >> 6234 (which is a rebranded 6233) and I have the same problem and the
> >> same solution, so maybe the patch could be extended to include this model?
> >>
> >
> > The patch has already been accepted, but there certainly could be another
> > patch adding the 6234. You'll have to provide the device information in
> > /proc/bus/usb/devices or from "lsusb -v".
> >
> >
> Ah, thank you. I think the relevant section from lsusb is:
>
> Bus 002 Device 011: ID 0421:0495 Nokia Mobile Phones
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x0421 Nokia Mobile Phones
> idProduct 0x0495
> bcdDevice 3.70
> Should I send this somewhere else or take further action?
This is good enough.
> >> (BTW, I'm sorry if this has been asked before and rebutted, but why not
> >> make the default max_sectors like Windows? It would surely help with
> >> compatibility)
> >>
> >
> > I'd be willing to do that if you can tell me how Windows decides what
> > max_sectors should be set to. I don't have any idea how Windows works
> > internally.
> >
> > On the other hand, it may turn out that the value used by Windows is too
> > pessimistic for many devices and reduces their throughput unnecessarily.
> > So maybe imitating Windows wouldn't be such a good idea after all.
> >
> >
> Ah, thanks for the explanation. The linux-usb faq seemed to imply that
> Windows chose 64 automatically and that it was well-observed and known-
That FAQ entry talks about devices from Genesys Logic only. I haven't
checked what values Windows uses for other kinds of devices.
> but yeah, probably there's no way to know that. Well, if there are not
> so many devices that barf with >64, no problem- but having to list them
> all is also probably not ideal. I understand it's not a clear decision.
See if the patch below does what you want.
Alan Stern
Index: usb-2.6/drivers/usb/storage/unusual_devs.h
===================================================================
--- usb-2.6.orig/drivers/usb/storage/unusual_devs.h
+++ usb-2.6/drivers/usb/storage/unusual_devs.h
@@ -189,6 +189,13 @@ UNUSUAL_DEV( 0x0421, 0x047c, 0x0370, 0x
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_MAX_SECTORS_64 ),
+/* Reported by Alex Corcoles <[EMAIL PROTECTED]> */
+UNUSUAL_DEV( 0x0421, 0x0495, 0x0370, 0x0370,
+ "Nokia",
+ "6234",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ US_FL_MAX_SECTORS_64 ),
+
/* Reported by Olaf Hering <[EMAIL PROTECTED]> from novell bug #105878 */
UNUSUAL_DEV( 0x0424, 0x0fdc, 0x0210, 0x0210,
"SMSC",
-------------------------------------------------------------------------
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