SMBus shell
Overview
This is a simple SMBus shell sample that allows arbitrary boards with SMBus driver supported exploring the SMBus communication with peripheral devices.
Building and Running
The sample can be built and run as follows for the qemu_x86_64 board:
west build -b qemu_x86_64 samples/drivers/smbus
west build -t run
Sample Output
Output from console when application started:
*** Booting Zephyr OS build zephyr-v3.2.0-804-gfedd72615e82 ***
Start SMBUS shell sample qemu_x86_64
uart:~$
List available SMBus shell commands with:
uart:~$ smbus
smbus - smbus commands
Subcommands:
quick :SMBus Quick command
Usage: quick <device> <addr>
scan :Scan SMBus peripheral devices command
Usage: scan <device>
byte_read :SMBus: byte read command
Usage: byte_read <device> <addr>
byte_write :SMBus: byte write command
Usage: byte_write <device> <addr> <value>
byte_data_read :SMBus: byte data read command
Usage: byte_data_read <device> <addr> <cmd>
byte_data_write :SMBus: byte data write command
Usage: byte_data_write <device> <addr> <cmd> <value>
word_data_read :SMBus: word data read command
Usage: word_data_read <device> <addr> <cmd>
word_data_write :SMBus: word data write command
Usage: word_data_write <device> <addr> <cmd> <value>
block_write :SMBus: Block Write command
Usage: block_write <device> <addr> <cmd> [<byte1>, ...]
block_read :SMBus: Block Read command
Usage: block_read <device> <addr> <cmd>
Scan for available SMBus devices with command:
uart:~$ smbus scan smbus@fb00
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: 50 51 52 53 54 55 56 57 -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
8 devices found on smbus@fb00