IO16787: NON-IBM USB DEVICE FAILS FLASH ON 4690 ENHANCED

APAR status

• Closed as program error.

Error description

• Customer reported their non-IBM USB handheld scanner flashes
  successfully on V6R2 4690 Classic terminals but fails to flash
  on the same level OS running Enhanced.  They had modified their
  ADXUSBUF.dat file to cause the handheld scanner to flash to a
  newer firmware but noted that on Enhanced the scanner would
  never come online after a terminal reload. Once loaded, if they
  hotplugged the USB scanner it would successfully come online and
  continue to operate until the next time the lane was reloaded.
  

Local fix

Problem summary

•  Scanner device is unable to handle increase
  USB packet throughput provided by Enhanced OS4690 which resulted
  in the device hanging during flash process.
  

Problem conclusion

• Code change made allowing the user to specify a logical name to
  disable the USB bandwidth reclamation feature utilized in OS4690
  Enhanced terminals and reduce the USB packet throughput to the
  same level currently in OS4690 Classic.   The logical name
  ADXURBNO is defined to reduce the throughput which enabled the
  scanner to be flashed.
  IMPORTANT NOTE:  Due to hardware differences, logical
  name ADXURBNO has NO effect (will NOT reduce the
  USB traffic speed) on 4900-7x5 and 4810-35x machines.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IO16111

• APAR is sysrouted TO one or more of the following:

Modules/Macros

•    VX_USBDL VX_EOSR
  

Fix information

• Fixed component name

  IBM 4690 OS V6

• Fixed component ID

  5639P7000

Applicable component levels

• R301 PSY

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