drivers/usb/typec/mux/intel_pmc_mux.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/typec/mux/intel_pmc_mux.c

Extension

.c

Size

22531 bytes

Lines

852

Domain

Driver Families

Bucket

drivers/usb

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/acpi.h
• linux/module.h
• linux/platform_data/x86/intel_scu_ipc.h
• linux/platform_device.h
• linux/property.h
• linux/usb/pd.h
• linux/usb/role.h
• linux/usb/typec_mux.h
• linux/usb/typec_dp.h
• linux/usb/typec_tbt.h
• linux/debugfs.h
• linux/usb.h

Detected Declarations

• struct altmode_req
• struct pmc_usb
• struct pmc_usb_port
• struct pmc_usb
• function update_port_status
• function sbu_orientation
• function hsl_orientation
• function is_pmc_mux_tbt
• function pmc_usb_send_command
• function pmc_usb_command
• function pmc_usb_mux_dp_hpd
• function pmc_usb_mux_dp
• function pmc_usb_mux_tbt
• function pmc_usb_mux_usb4
• function pmc_usb_mux_safe_state
• function pmc_usb_disconnect
• function pmc_usb_connect
• function pmc_usb_mux_set
• function pmc_usb_set_orientation
• function pmc_usb_set_role
• function pmc_usb_register_port
• function pmc_usb_probe_iom
• function port_iom_status_show
• function pmc_mux_port_debugfs_init
• function pmc_usb_probe
• function pmc_usb_remove
• function pmc_usb_init
• function pmc_usb_exit
• module init pmc_usb_init

Annotated Snippet

module_init(pmc_usb_init);

static void __exit pmc_usb_exit(void)
{
	platform_driver_unregister(&pmc_usb_driver);
	debugfs_remove(pmc_mux_debugfs_root);
}
module_exit(pmc_usb_exit);

MODULE_AUTHOR("Heikki Krogerus <heikki.krogerus@linux.intel.com>");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Intel PMC USB mux control");

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/module.h`, `linux/platform_data/x86/intel_scu_ipc.h`, `linux/platform_device.h`, `linux/property.h`, `linux/usb/pd.h`, `linux/usb/role.h`, `linux/usb/typec_mux.h`.
• Detected declarations: `struct altmode_req`, `struct pmc_usb`, `struct pmc_usb_port`, `struct pmc_usb`, `function update_port_status`, `function sbu_orientation`, `function hsl_orientation`, `function is_pmc_mux_tbt`, `function pmc_usb_send_command`, `function pmc_usb_command`.
• Atlas domain: Driver Families / drivers/usb.
• Implementation status: integration implementation candidate.

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.