drivers/usb/host/uhci-hcd.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/host/uhci-hcd.c

Extension

.c

Size

25647 bytes

Lines

936

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/module.h
• linux/pci.h
• linux/kernel.h
• linux/init.h
• linux/delay.h
• linux/ioport.h
• linux/slab.h
• linux/errno.h
• linux/unistd.h
• linux/interrupt.h
• linux/spinlock.h
• linux/debugfs.h
• linux/pm.h
• linux/dmapool.h
• linux/dma-mapping.h
• linux/usb.h
• linux/usb/hcd.h
• linux/bitops.h
• linux/dmi.h
• linux/uaccess.h
• asm/io.h
• asm/irq.h
• uhci-hcd.h
• uhci-debug.c
• uhci-q.c
• uhci-hub.c
• uhci-pci.c
• uhci-grlib.c
• uhci-platform.c

Detected Declarations

• function uhci_frame_skel_link
• function finish_reset
• function uhci_hc_died
• function check_and_reset_hc
• function uhci_generic_reset_hc
• function uhci_generic_check_and_reset_hc
• function configure_hc
• function resume_detect_interrupts_are_broken
• function global_suspend_mode_is_broken
• function suspend_rh
• function start_rh
• function wakeup_rh
• function uhci_irq
• function uhci_get_current_frame_number
• function release_uhci
• function uhci_start
• function uhci_stop
• function uhci_rh_suspend
• function uhci_rh_resume
• function uhci_hcd_endpoint_disable
• function uhci_hcd_get_frame_number
• function uhci_count_ports
• function uhci_hcd_init
• function uhci_hcd_cleanup
• module init uhci_hcd_init

Annotated Snippet

module_init(uhci_hcd_init);
module_exit(uhci_hcd_cleanup);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/pci.h`, `linux/kernel.h`, `linux/init.h`, `linux/delay.h`, `linux/ioport.h`, `linux/slab.h`, `linux/errno.h`.
• Detected declarations: `function uhci_frame_skel_link`, `function finish_reset`, `function uhci_hc_died`, `function check_and_reset_hc`, `function uhci_generic_reset_hc`, `function uhci_generic_check_and_reset_hc`, `function configure_hc`, `function resume_detect_interrupts_are_broken`, `function global_suspend_mode_is_broken`, `function suspend_rh`.
• Atlas domain: Driver Families / drivers/usb.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.