Documentation/ABI/testing/sysfs-bus-fsi

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-bus-fsi

File Facts

System: Linux kernel
Corpus path: Documentation/ABI/testing/sysfs-bus-fsi
Extension: [no extension]
Size: 1649 bytes
Lines: 47
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: Documentation
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

No C-style include directives detected by the generator.

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

What:           /sys/bus/platform/devices/../fsi-master/fsi0/rescan
Date:		May 2017
KernelVersion:  4.12
Contact:        linux-fsi@lists.ozlabs.org
Description:
                Initiates a FSI master scan for all connected slave devices
		on its links.

What:           /sys/bus/platform/devices/../fsi-master/fsi0/break
Date:		May 2017
KernelVersion:  4.12
Contact:        linux-fsi@lists.ozlabs.org
Description:
		Sends an FSI BREAK command on a master's communication
		link to any connected slaves.  A BREAK resets connected
		device's logic and preps it to receive further commands
		from the master.

What:           /sys/bus/platform/devices/../fsi-master/fsi0/slave@00:00/term
Date:		May 2017
KernelVersion:  4.12
Contact:        linux-fsi@lists.ozlabs.org
Description:
		Sends an FSI terminate command from the master to its
		connected slave. A terminate resets the slave's state machines
		that control access to the internally connected engines.  In
		addition the slave freezes its internal error register for
		debugging purposes.  This command is also needed to abort any
		ongoing operation in case of an expired 'Master Time Out'
		timer.

What:           /sys/bus/platform/devices/../fsi-master/fsi0/slave@00:00/raw
Date:		May 2017
KernelVersion:  4.12
Contact:        linux-fsi@lists.ozlabs.org
Description:
		Provides a means of reading/writing a 32 bit value from/to a
		specified FSI bus address.

What:           /sys/bus/platform/devices/../cfam_reset
Date:		Sept 2020
KernelVersion:  5.10
Contact:        linux-fsi@lists.ozlabs.org
Description:
		Provides a means of resetting the cfam that is attached to the
		FSI device.

Annotation

Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.