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The utility does not seem to support dts wp-gpios entries.

I have the following dts node :

eeprom@50{
    compatible = "microchip,24c512", "atmel,24c512";
    wp-gpios = <&gpio4 24 GPIO_ACTIVE_HIGH>; /* set wp-gpios to EEPROM-WP */
    reg = <0x50>;
};

When I use date | eeprog -f -16 -w 0x00 /dev/i2c/by-id/pm 0x50 and then eeprog -f /dev/i2c/by-id/pm 0x50 -16 -r 0x00:0x100 | hexdump -C to read the data back. The data is not properly written into the eeprom.

I should manually set my WP pin to a correct value in order for the data to be properly written.

Hi!

I'm trying to read 24Cxx chip using eeprog and I always see next message:

./eeprog-0.7.6 # ./eeprog -f /dev/i2c-7 0x50 -r 0:256 
eeprog 0.7.6, a 24Cxx EEPROM reader/writer
Copyright (c) 2003-2004 by Stefano Barbato - All rights reserved.
  Bus: /dev/i2c-7, Address: 0x50, Mode: 8bit
*** stack smashing detected ***: terminated
Аварийный останов

I saw this guy forked your project and fixed this:
alvintpwang@8ffb913

So this fix works for me too. Also I see that some people on the internet also have this issue.

Hope it helps. Thank you for your hard work!

When I trying to write eeprom I see next error:

# cat dump1 | ./eeprog -f /dev/i2c-7 0x50 -w 0
eeprog 0.7.6, a 24Cxx EEPROM reader/writer
Copyright (c) 2003-2004 by Stefano Barbato - All rights reserved.
  Bus: /dev/i2c-7, Address: 0x50, Mode: 8bit
  Writing stdin starting at address 0x0
Error i2c_write_2b: No such device or address
Error at line 150: write error

I've fixed this by editing i2c_write_2b() from 24cXX.c file where I updated line 46 to usleep(10000); and this solved issue.

I can create a PR if you don't mind.

Thank you!