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root@zhnux:/proc# cat /proc/bus/mmc/device
Slot #0
  State idle (0)
  Media unknown
  CID mid=0
      oid=0
      pnm=
      prv=0.0
      psn=0x00000000
      mdt=0/1997
  CSD csd_structure=0
      spec_vers=0
      taac=0x00
      nsac=0x00
      tran_speed=0x00
      ccc=0x0000
      read_bl_len=0
      read_bl_partial=0
      write_blk_misalign=0
      read_blk_misalign=0
      dsr_imp=0
      c_size=0
      vdd_r_curr_min=0
      vdd_r_curr_max=0
      vdd_w_curr_min=0
      vdd_w_curr_max=0
      c_size_mult=0
      wp_grp_size=0
      wp_grp_enable=0
      default_ecc=0
      r2w_factor=0
      write_bl_len=0
      write_bl_partial=0
      file_format_grp=0
      copy=0
      perm_write_protect=0
      tmp_write_protect=0
      file_format=0
      ecc=0
      sector_size=0
      erase_grp_size=0