tree 08f93feac08bc20fc77cf0b353fa83798488bd50
parent 1f4c8f8123c0c08635367d2b279cef4fed3116b2
author Anupama B R <anupama.b.r1@ibm.com> 1737215553 -0600
committer Jinu Joy Thomas <jinu.joy.thomas@in.ibm.com> 1739248255 +0000

Take input from file for write keyword

This commit adds code to read keyword’s value from the local file to
update keyword’s value. User can provide file path where the value
exists using --file option.

Output:
```
Write keyword using object path (both primary and backup path VPD gets updated)

Before update:
root@p10bmc:/tmp# ./vpd-tool -O /system/chassis/motherboard -R VSYS -K BR -r
{
    "/system/chassis/motherboard": {
        "BR": "S0"
    }
}
root@p10bmc:/tmp# ./vpd-tool -O /sys/bus/i2c/drivers/at24/8-0050/eeprom -R VSYS -K BR -r -H
{
    "/sys/bus/i2c/drivers/at24/8-0050/eeprom": {
        "BR": "S0"
    }
}

Input file (In ASCII format):
root@p10bmc:/tmp# cat input.txt
A2

Update keyword command:
root@p10bmc:/tmp# ./vpd-tool -O /system/chassis/motherboard -R VSYS -K BR -w --file input.txt
Data updated successfully

After update:
root@p10bmc:/tmp# ./vpd-tool -O /system/chassis/motherboard -R VSYS -K BR -r
{
    "/system/chassis/motherboard": {
        "BR": "A2"
    }
}
root@p10bmc:/tmp# ./vpd-tool -O /sys/bus/i2c/drivers/at24/8-0050/eeprom -R VSYS -K BR -r -H
{
    "/sys/bus/i2c/drivers/at24/8-0050/eeprom": {
        "BR": "A2"
    }
}

Write keyword using hardware path (updates only given hardware path):

Input file (In hexadecimal format):
root@p10bmc:/tmp# cat input.txt
0x5330

Update keyword command:
root@p10bmc:/tmp# ./vpd-tool -O /sys/bus/i2c/drivers/at24/8-0050/eeprom -R VSYS -K BR -w -H --file input.txt
Data updated successfully

After update:
root@p10bmc:/tmp# ./vpd-tool -O /system/chassis/motherboard -R VSYS -K BR -r
{
    "/system/chassis/motherboard": {
        "BR": "A2"
    }
}
root@p10bmc:/tmp# ./vpd-tool -O /sys/bus/i2c/drivers/at24/8-0050/eeprom -R VSYS -K BR -r -H
{
    "/sys/bus/i2c/drivers/at24/8-0050/eeprom": {
        "BR": "S0"
    }
}
```

Change-Id: I762dceae351ab2f9a1989b664a424cda4470dd1d
Signed-off-by: Anupama B R <anupama.b.r1@ibm.com>