lkml.org 
[lkml]   [2009]   [Dec]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: [BUG] 2.6.32 - Sddr-09 SM reader resets endlessly
    Date
    On Saturday 05 December 2009 23:51:37 Alan Stern wrote:
    > On Sat, 5 Dec 2009, Ed Tomlinson wrote:
    >
    > > On Saturday 05 December 2009 16:34:26 Alan Stern wrote:
    > > > On Sat, 5 Dec 2009, Andries E. Brouwer wrote:
    > > >
    > > > > > Andries, do you have any idea what's going on? Evidently this device
    > > > > > doesn't accept the protocol used by the sddr09 driver.
    > > > >
    > > > > Hi Alan,
    > > > >
    > > > > Sorry, no - I have no memory and worked on these USB drivers
    > > > > years ago. Forgot all details. Also my last sddr09 device broke
    > > > > some time ago.
    > > > >
    > > > > Looking at my old files I do not see the Vendor Id 0781, so maybe
    > > > > this is a device I never encountered.
    > > > > These old files also discuss some trickery with multi-lun devices
    > > > > where the driver needed depends on the lun. This is not a reader
    > > > > of multiple types of card?
    > > > >
    > > > > Many of my SM readers worked with either sddr09 or sddr55.
    > > > > Does the unusual devices section today say that such a device
    > > > > needs sddr09?
    > > > >
    > > > > Found a 2.6.31 source tree. Yes,
    > > > >
    > > > > UNUSUAL_DEV( 0x0781, 0x0200, 0x0000, 0x9999,
    > > > > "Sandisk",
    > > > > "ImageMate SDDR-09",
    > > > > US_SC_SCSI, US_PR_EUSB_SDDR09, usb_stor_sddr09_init,
    > > > > 0),
    > > > >
    > > > > Is it known who added this? Is 0208 in the interval of known devices
    > > > > for which sddr09 works?
    > > >
    > > > The entry was added before 2.5.0 (more than 7 years ago), and I can't
    > > > tell who added it. And the entry doesn't say anything about DPCM
    > > > (multiple-LUN trickery).
    > > >
    > > > Ed, it looks like you're out of luck. Unless you can figure out the
    > > > vendor-specific protocol used by that device, and modify the sddr09
    > > > driver to support it, you won't be able to use the device under Linux.
    > > >
    > > > Or am I completely off base? Did it used to work with an earlier
    > > > kernel? If it did, can you get a usbmon trace of it?
    > >
    > > This is a regression. The device works fine in 2.6.31 something
    > > in .32 breaks it.
    >
    > Okay, that's new information. Can you post a usbmon trace from 2.6.31?

    Alan/Andries,

    I rebooted as far back as .29. I still get the resets. Looks like the HW is at fault with
    the faults starting when I booted .32 (guess Murphy wanted some fun). In any case,
    looks like there is not much more than can be (or needs to be) done here.

    Thanks & sorry for the noise,
    Ed


    \
     
     \ /
      Last update: 2009-12-06 18:09    [W:3.141 / U:0.008 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site