I want to know the amount of bytes Read/Write on MTD char device. What is the way to get it?

It would be OK either via C or terminal.

  1. I am mounting the mtd device as embedded device.
  2. mtd partitions are done in the SPI flash and it's not mounted. We directly using the /dev/mtdN for read/write.

closed as unclear what you're asking by dr01, Rui F Ribeiro, Anthon, Archemar, jimmij Jun 19 '17 at 20:11

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  • 1
    The amount that has been read/written since the beginning? – phk Jun 2 '17 at 8:01
  • Yes the same. Amount of bytes are write/read from the MTD char device – Selva Kumar Jun 2 '17 at 13:09
  • Here the clear details, hope you aware of how 'iostat' works on block device. As similar to the 'iostat', need to get the Read/Write information for CHAR device (i.e /dev/mtdN) since of the power-up of the system. for example: User writes 10 bytes by 5 time in same location(like re-writing), i expected the output of this trace is 50Bytes. Because, 5 times the write command send to the flash device for each 10Bytes. – Selva Kumar Jun 5 '17 at 5:02

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