drivers/usb/host/xhci-histb.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/host/xhci-histb.c

Extension

.c

Size

9535 bytes

Lines

400

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/clk.h
• linux/dma-mapping.h
• linux/kernel.h
• linux/module.h
• linux/of.h
• linux/platform_device.h
• linux/pm_runtime.h
• linux/reset.h
• xhci.h

Detected Declarations

• struct xhci_hcd_histb
• function xhci_histb_config
• function xhci_histb_clks_get
• function xhci_histb_host_enable
• function xhci_histb_host_disable
• function xhci_histb_setup
• function xhci_histb_probe
• function xhci_histb_remove
• function xhci_histb_suspend
• function xhci_histb_resume
• function xhci_histb_init
• function xhci_histb_exit
• module init xhci_histb_init

Annotated Snippet

module_init(xhci_histb_init);

static void __exit xhci_histb_exit(void)
{
	platform_driver_unregister(&histb_xhci_driver);
}
module_exit(xhci_histb_exit);

MODULE_DESCRIPTION("HiSilicon STB xHCI Host Controller Driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/clk.h`, `linux/dma-mapping.h`, `linux/kernel.h`, `linux/module.h`, `linux/of.h`, `linux/platform_device.h`, `linux/pm_runtime.h`, `linux/reset.h`.
• Detected declarations: `struct xhci_hcd_histb`, `function xhci_histb_config`, `function xhci_histb_clks_get`, `function xhci_histb_host_enable`, `function xhci_histb_host_disable`, `function xhci_histb_setup`, `function xhci_histb_probe`, `function xhci_histb_remove`, `function xhci_histb_suspend`, `function xhci_histb_resume`.
• 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.