cvs commit: src/sys/dev/mmc mmc.c

[Warner Losh]

imp         2007-06-05 17:04:44 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/mmc          mmc.c 
  Log:
  MFp4: When querying the operating condition of SD cards (using the
  application specific SEND_OP_COND (CMD55 + ACMD41), go ahead and allow
  100 tries.  This gives a timeout of a second rather than the ~100ms
  the old style produces.
  
  I've had one old 16MB SD card which needs the extra time.  I've now
  had reports from the field that other cards need this too.
  
  Originally done at BSDcan 2007 while waiting to give my embedding
  madness minitalk.
  
  Revision  Changes    Path
  1.4       +1 -1      src/sys/dev/mmc/mmc.c