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doc: smbus: Correct SMBus documentation

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Fix syntax errors in the documentation.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This commit is contained in:
Andrei Emeltchenko 2023-05-30 18:26:51 +03:00 • committed by Anas Nashif
commit 21f59903c7
1 changed files with 14 additions and 14 deletions
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28
doc/hardware/peripherals/smbus.rst
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@ -13,26 +13,26 @@ Overview
System Management Bus (SMBus) is derived from I2C for communication
with devices on the motherboard. A system may use SMBus to communicate
with the peripherals on the motherboard without using dedicated control
lines. With SMBus peripheral can provide various manufacturer information,
lines. SMBus peripherals can provide various manufacturer information,
report errors, accept control parameters, etc.
Devices on the bus can operate in three roles: as a "controller" that
initiates transactions and controls the clock, a "peripheral" that
responds to transaction commands, or a "host", which is a specialized
controller, that provides the main interface to the system's CPU.
Zephyr has API for "controller" role.
Devices on the bus can operate in three roles: as a Controller that
initiates transactions and controls the clock, a Peripheral that
responds to transaction commands, or a Host, which is a specialized
Controller, that provides the main interface to the system's CPU.
Zephyr has API for the Controller role.
In SMBus peripheral devices can initiate communication with Controller
SMBus peripheral devices can initiate communication with Controller
with two methods:
* **Host Notify protocol**: Peripheral device that supports Host Notify
protocol behaive as a Controller to perform the notification. It writes
three-bytes message to a special address "SMBus Host (0x08)" with own
* **Host Notify protocol**: Peripheral device that supports the Host Notify
protocol behaves as a Controller to perform the notification. It writes
a three-bytes message to a special address "SMBus Host (0x08)" with own
address and two bytes of relevant data.
* **SMBALERT# signal**: Peripheral device uses special signal SMBALERT# to
to request attention from the Controller. Controller needs to read one byte
request attention from the Controller. The Controller needs to read one byte
from the special "SMBus Alert Response Address (ARA) (0x0c)". The peripheral
device responds with data byte containing own address.
device responds with a data byte containing its own address.
Currently, the API is based on `SMBus Specification`_ version 2.0
@ -46,8 +46,8 @@ SMBus Controller API
********************
Zephyr's SMBus controller API is used when an SMBus device controls the bus,
in particularly the start and stop conditions and the clock. This is
the most common mode, used to interact with SMbus peripherals.
particularly the start and stop conditions and the clock. This is
the most common mode used to interact with SMBus peripherals.
Configuration Options
*********************