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- What: /sys/bus/siox/devices/siox-X/active
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- On reading represents the current state of the bus. If it
- contains a "0" the bus is stopped and connected devices are
- expected to not do anything because their watchdog triggered.
- When the file contains a "1" the bus is operated and periodically
- does a push-pull cycle to write and read data from the
- connected devices.
- When writing a "0" or "1" the bus moves to the described state.
- What: /sys/bus/siox/devices/siox-X/device_add
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Write-only file. Write
- <type> <inbytes> <outbytes> <statustype>
- to add a new device dynamically. <type> is the name that is used to match
- to a driver (similar to the platform bus). <inbytes> and <outbytes> define
- the length of the input and output shift register in bytes respectively.
- <statustype> defines the 4 bit device type that is check to identify connection
- problems.
- The new device is added to the end of the existing chain.
- What: /sys/bus/siox/devices/siox-X/device_remove
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Write-only file. A single write removes the last device in the siox chain.
- What: /sys/bus/siox/devices/siox-X/poll_interval_ns
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Defines the interval between two poll cycles in nano seconds.
- Note this is rounded to jiffies on writing. On reading the current value
- is returned.
- What: /sys/bus/siox/devices/siox-X-Y/connected
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Read-only value. "0" means the Yth device on siox bus X isn't "connected" i.e.
- communication with it is not ensured. "1" signals a working connection.
- What: /sys/bus/siox/devices/siox-X-Y/inbytes
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Read-only value reporting the inbytes value provided to siox-X/device_add
- What: /sys/bus/siox/devices/siox-X-Y/status_errors
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Counts the number of time intervals when the read status byte doesn't yield the
- expected value.
- What: /sys/bus/siox/devices/siox-X-Y/type
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Read-only value reporting the type value provided to siox-X/device_add.
- What: /sys/bus/siox/devices/siox-X-Y/watchdog
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Read-only value reporting if the watchdog of the siox device is
- active. "0" means the watchdog is not active and the device is expected to
- be operational. "1" means the watchdog keeps the device in reset.
- What: /sys/bus/siox/devices/siox-X-Y/watchdog_errors
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Read-only value reporting the number to time intervals when the
- watchdog was active.
- What: /sys/bus/siox/devices/siox-X-Y/outbytes
- KernelVersion: 4.16
- Contact: Thorsten Scherer <[email protected]>, Uwe Kleine-König <[email protected]>
- Description:
- Read-only value reporting the outbytes value provided to siox-X/device_add.
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