MEN G25A, User Manual

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Getting Started
20G025A00 E3

2017-04-20 Page 31
2.7.4.1 MEN Tool
The MEN MDIS tool provided to access SMBus devices is called smb2_ctrl (MEN article
number 13Y004-06).
For example, to enable the locate LED of drive 0:
2.7.4.2 Standard Linux I2C Tools
You can use i2cset to control the SATA SGPIO functions. The basic parameters to be used
for the command are:
Examples
 Enabling activity LED of drive 1:

Disabling activity LED of drive 1:
 Enabling locate LED of drive 1:

Enabling hot-plug LED of drive 2:
 Disabling SATA_DETECT bit:

Enabling SATA_DETECT bit:
See the HTML documentation included with the tool in the MDIS5 framework for a
detailed description.
$ sudo smb2_ctrl smb2_2 wbd -a=0xe0 -o=0x00 -d=0x40
$ sudo i2cset -y <SMBus number> <device address> <drive number> <data>
Take care to use the correct SMBus number applicable for your system.
$ sudo i2cset -y 1 0x70 0x01 0x80
$ sudo i2cset -y 1 0x70 0x01 0x00
$ sudo i2cset -y 1 0x70 0x01 0x40
$ sudo i2cset -y 1 0x70 0x02 0x20
$ sudo i2cset -y 1 0x70 0xFE 0x80
$ sudo i2cset -y 1 0x70 0xFE 0x00
More information on supported functions and hardware implementation
 See Chapter 5.3 SATA SGPIO FPGA on page 60 for a register description.

See Chapter 2.7.1.2 Standard Linux I2C Tools on page 28 for a more detailed
description of how to access SMBus devices using standard Linux tools.