#7774 NORM Future : OFW fails with USB to Micro SD adapter

[Zarro Boogs per Child]

#7774: OFW fails with USB to Micro SD adapter
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   Reporter:  wmb at firmworks.com    |       Owner:  wmb at firmworks.com      
       Type:  defect               |      Status:  closed                 
   Priority:  normal               |   Milestone:  Future Release         
  Component:  ofw - open firmware  |     Version:  OFW development version
 Resolution:  fixed                |    Keywords:                         
Next_action:  never set            |    Verified:  0                      
  Blockedby:                       |    Blocking:                         
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Changes (by mikus):

 * cc: mikus at bga.com (added)


Comment:

 I see identical results with Q2D16 and Q2E12f.

 With the USB stick plugged in at the XO, 'show-devs /usb' gives:

   /pci/usb at f,5/scsi at 3,0 [[br]]
   /pci/usb at f,5/wlan at 0,0 [[br]]
   /pci/usb at f,5/scsi at 3,0/disk

 and 'dir disk:\' shows the USB stick's root directory.

  [[br]]
 With a card-reader hub plugged in at the XO, and the USB stick plugged in
 at the hub, 'show-devs /usb' gives:

  <1>  /pci/usb at f,5/hub at 3,0 [[BR]]
  <2>  /pci/usb at f,5/wlan at 0,0  [[BR]]
  <3>  /pci/usb at f,5/hub at 3,0/device at 4,0  [[BR]]
  <4>  /pci/usb at f,5/hub at 3,0/scsi at 3,0  [[BR]]
  <5>  /pci/usb at f,5/hub at 3,0/scsi at 1,0  [[BR]]
  <6>  /pci/usb at f,5/hub at 3,0/scsi at 3,0/disk  [[BR]]
  <7>  /pci/usb at f,5/hub at 3,0/scsi at 1,0/disk  [[BR]]

 Notes:

  <2>  This is the built-in radio at the XO [[BR]]
  <3>  This is my USB-ethernet adapter [[BR]]
  <4>  +++ See below [[BR]]
  <5>  This is the USB stick plugged in at the hub

  [[BR]]
 --------

 If there is a SD card plugged in at the cardreader-hub, lines <4> and <6>
 show up, and 'dir disk:\' shows me the SD card's root directory.  So far,
 so good.  [Note: I __already__ have a "permanent" SD card plugged directly
 into my XO.]

  [[BR]]
 But if there is __NO__ SD card plugged in at the cardreader-hub, lines <4>
 and <6> still show up.  Now when I enter 'dir disk:\', it tells me "Can't
 open directory".

  [[BR]]
 Whether or not there is a SD card plugged in at the cardreader-hub, the
 only way I have found to access an USB stick plugged in at the cardreader-
 hub is to use the *full* device name string in the OFW command - for
 example 'dir /pci/usb at f,5/hub at 3,0/scsi at 1,0/disk:\'.

-- 
Ticket URL: <http://dev.laptop.org/ticket/7774#comment:4>
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