mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
23 lines
1007 B
23 lines
1007 B
What: /sys/bus/i2c/.../idle_state |
|
Date: January 2019 |
|
KernelVersion: 5.2 |
|
Contact: Robert Shearman <[email protected]> |
|
Description: |
|
Value that exists only for mux devices that can be |
|
written to control the behaviour of the multiplexer on |
|
idle. Possible values: |
|
|
|
=========== =============================================== |
|
-2 disconnect on idle, i.e. deselect the last used |
|
channel, which is useful when there is a device |
|
with an address that conflicts with another |
|
device on another mux on the same parent bus. |
|
-1 leave the mux as-is, which is the most optimal |
|
setting in terms of I2C operations and is the |
|
default mode. |
|
0..<nchans> set the mux to a predetermined channel, |
|
which is useful if there is one channel that is |
|
used almost always, and you want to reduce the |
|
latency for normal operations after rare |
|
transactions on other channels |
|
=========== ===============================================
|
|
|