Gateworks Linux Example Test Commands ¶

Following is a list of commands that are available in the BSP from Gateworks that can be used in order to test the functionality of the product. Users can use these commands to further the functionality of there application.

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PCI ¶

See also:

• newport/PCIe
• ventana/PCIe

Find available devices on the PCI Bus ¶

lspci -v

USB ¶

Find available devices on the USB Bus ¶

lsusb -v

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RTC ¶

Read Time from RTC ¶

hwclock -r

Write current Time to RTC ¶

hwclock -w

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HWMON ¶

Read Voltage ¶

Different voltages can be read from the board, just change in0 to any of in0 - in12
The voltages read are current voltage * 1000

cat /sys/class/hwmon/hwmon0/device/in0_label
cat /sys/class/hwmon/hwmon0/device/in0_input

Read Temperature ¶

The temp read is current temp * 10

cat /sys/class/hwmon/hwmon0/device/temp0_input

Set Fan Setpoint ¶

The fan controller has 5 setpoints ranging from 50% on to 100% on, corresponding with fan0_point0 (50%) to fan0_poing5 (100%)

Read Current Setpoint ¶

The setpoint read is current setpoint * 10

cat /sys/class/hwmon/hwmon0/device/fan0_point0

Write new Setpoint ¶

Value to write is new temperatore * 10

echo 450 > /sys/class/hwmon/hwmon0/device/fan0_point0

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GPIO ¶

See also:

• gpio
• OpenWrt/gpio

Read GPIO ¶

See a list of currentl used GPIO's:

cat /sys/kernel/debug/gpio

Export A GPIO for user control ¶

echo 8 > /sys/class/gpio/export # export gpio 8 which will get configured as an input

Set Direction of GPIO ¶

echo out > /sys/class/gpio/gpio8/value # make gpio8 an output
echo in > /sys/class/gpio/gpio8/value # make gpio8 an input

Set Output of GPIO ¶

echo 0 > /sys/class/gpio/gpio8/value # set gpio8 to logic low
echo 1 > /sys/class/gpio/gpio8/value # set gpio8 to logic high

Check GPIO ¶

cat /sys/kernel/debug/gpio # see all gpio's
cat /sys/class/gpio/gpio8/value # see state of gpio8

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I2C ¶

See also:

• I2C
• linux/i2c

Detect all available i2c devices ¶

i2cdetect -f -y 0

Read i2c address ¶

Where "x" is the device id, and "y" is the wanted address

i2cget -f -y 0 x y

Write i2c Address ¶

Where "x" is the device id, and "y" is the wanted address to write and "z" is the value to write

i2cset -f -y 0 x y z

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Kernel Modules ¶

See also:

• kernel

Find modules loaded by kernel ¶

lsmod