Mailinglist Archive: opensuse-bugs (5175 mails)

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http://bugzilla.novell.com/show_bug.cgi?id=518416


           Summary: Problem with USB ACM device
    Classification: openSUSE
           Product: openSUSE 11.1
           Version: Final
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Kernel
        AssignedTo: bnc-team-screening@xxxxxxxxxxxxxxxxxxxxxx
        ReportedBy: receive-spam@xxxxxxxxx
         QAContact: qa@xxxxxxx
          Found By: ---


Created an attachment (id=302089)
 --> (http://bugzilla.novell.com/attachment.cgi?id=302089)
Patch for the kernel

I've got an AVR programmer which acts like an USB ACM device and is handled by
the cdc_acm driver. /dev/ttyACM0 does appear but any attempt to write something
to the device with a simple "echo something >/dev/ttyACM0" fails with "Invalid
argument" error.

This problem has been discussed in LKML
(http://groups.google.com/group/linux.kernel/browse_thread/thread/17c2f03367e1d615/5ba5f03e64d9072d?lnk=raot&fwc=1)
and fix is available is this thread. I'm attaching patch for the 2.6.27 kernel
(also suitable for 2.6.28 thru 2.6.30) which fixes this problem.

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