drivers/usb/host/ohci-pxa27x.c

File Facts

System

Linux kernel

Corpus path

drivers/usb/host/ohci-pxa27x.c

Extension

.c

Size

16978 bytes

Lines

608

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/device.h
• linux/dma-mapping.h
• linux/io.h
• linux/kernel.h
• linux/module.h
• linux/of_platform.h
• linux/platform_data/usb-ohci-pxa27x.h
• linux/platform_data/pxa2xx_udc.h
• linux/platform_device.h
• linux/regulator/consumer.h
• linux/signal.h
• linux/usb.h
• linux/usb/hcd.h
• linux/usb/otg.h
• linux/soc/pxa/cpu.h
• ohci.h

Detected Declarations

• struct pxa27x_ohci
• function pxa27x_ohci_select_pmm
• function pxa27x_ohci_set_vbus_power
• function pxa27x_ohci_hub_control
• function pxa27x_setup_hc
• function pxa27x_reset_hc
• function pxa27x_start_hc
• function pxa27x_stop_hc
• function ohci_pxa_of_init
• function ohci_pxa_of_init
• function start
• function ohci_hcd_pxa27x_probe
• function ohci_hcd_pxa27x_drv_suspend
• function ohci_hcd_pxa27x_drv_resume
• function ohci_pxa27x_init
• function ohci_pxa27x_cleanup
• module init ohci_pxa27x_init

Annotated Snippet

module_init(ohci_pxa27x_init);

static void __exit ohci_pxa27x_cleanup(void)
{
	platform_driver_unregister(&ohci_hcd_pxa27x_driver);
}
module_exit(ohci_pxa27x_cleanup);

MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pxa27x-ohci");

Annotation

• Immediate include surface: `linux/clk.h`, `linux/device.h`, `linux/dma-mapping.h`, `linux/io.h`, `linux/kernel.h`, `linux/module.h`, `linux/of_platform.h`, `linux/platform_data/usb-ohci-pxa27x.h`.
• Detected declarations: `struct pxa27x_ohci`, `function pxa27x_ohci_select_pmm`, `function pxa27x_ohci_set_vbus_power`, `function pxa27x_ohci_hub_control`, `function pxa27x_setup_hc`, `function pxa27x_reset_hc`, `function pxa27x_start_hc`, `function pxa27x_stop_hc`, `function ohci_pxa_of_init`, `function ohci_pxa_of_init`.
• 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.