[PLUG] SD cards always mount read-only

[Paul Mullen]

On Tue, Oct 11, 2011 at 09:03:49AM -0700, Paul Mullen wrote:
> It's possible the write-protect switch on the adaptor is not quite
> right for the reader in your laptop.

You might also try puting a few layers of electrical tape (or any tape
that has substantial thickness to it) over the write-protect swith
notch on the adapter.

What kernel module does the card reader on your laptop use?  Some of
them offer the option of ignoring the card reader's write-protect
feature.  E.g.,

  $ modinfo sdricoh_cs
  filename: /lib/modules/3.0.0-1-amd64/kernel/drivers/mmc/host/sdricoh_cs.ko
  license:        GPL
  description:    Ricoh PCMCIA Secure Digital Interface driver
  author:         Sascha Sommer <saschasommer at freenet.de>
  alias:          pcmcia:m*c*f*fn*pfn*paD9F522EDpbACE80909pc*pd*
  alias:          pcmcia:m*c*f*fn*pfn*paD9F522EDpbC3901202pc*pd*
  depends:        pcmcia,mmc_core
  intree:         Y
  vermagic:       3.0.0-1-amd64 SMP mod_unload modversions 
  parm:           switchlocked:Switch the cards locked status.Use this when unlocked cards are shown readonly (default 0) (uint)


-- 
Paul