drivers/usb/storage/usual-tables.c
Source file repositories/reference/linux-study-clean/drivers/usb/storage/usual-tables.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/usb/storage/usual-tables.c- Extension
.c- Size
- 2371 bytes
- Lines
- 94
- Domain
- Driver Families
- Bucket
- drivers/usb
- Inferred role
- Driver Families: implementation source
- Status
- source 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/kernel.hlinux/module.hlinux/usb.hlinux/usb_usual.hunusual_devs.hunusual_alauda.hunusual_cypress.hunusual_datafab.hunusual_ene_ub6250.hunusual_freecom.hunusual_isd200.hunusual_jumpshot.hunusual_karma.hunusual_onetouch.hunusual_realtek.hunusual_sddr09.hunusual_sddr55.hunusual_usbat.h
Detected Declarations
struct ignore_entryfunction usb_usual_ignore_device
Annotated Snippet
struct ignore_entry {
u16 vid, pid, bcdmin, bcdmax;
};
#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
vendorName, productName, useProtocol, useTransport, \
initFunction, flags) \
{ \
.vid = id_vendor, \
.pid = id_product, \
.bcdmin = bcdDeviceMin, \
.bcdmax = bcdDeviceMax, \
}
static const struct ignore_entry ignore_ids[] = {
# include "unusual_alauda.h"
# include "unusual_cypress.h"
# include "unusual_datafab.h"
# include "unusual_ene_ub6250.h"
# include "unusual_freecom.h"
# include "unusual_isd200.h"
# include "unusual_jumpshot.h"
# include "unusual_karma.h"
# include "unusual_onetouch.h"
# include "unusual_realtek.h"
# include "unusual_sddr09.h"
# include "unusual_sddr55.h"
# include "unusual_usbat.h"
{ } /* Terminating entry */
};
#undef UNUSUAL_DEV
/* Return an error if a device is in the ignore_ids list */
int usb_usual_ignore_device(struct usb_interface *intf)
{
struct usb_device *udev;
unsigned vid, pid, bcd;
const struct ignore_entry *p;
udev = interface_to_usbdev(intf);
vid = le16_to_cpu(udev->descriptor.idVendor);
pid = le16_to_cpu(udev->descriptor.idProduct);
bcd = le16_to_cpu(udev->descriptor.bcdDevice);
for (p = ignore_ids; p->vid; ++p) {
if (p->vid == vid && p->pid == pid &&
p->bcdmin <= bcd && p->bcdmax >= bcd)
return -ENXIO;
}
return 0;
}
Annotation
- Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/usb.h`, `linux/usb_usual.h`, `unusual_devs.h`, `unusual_alauda.h`, `unusual_cypress.h`, `unusual_datafab.h`.
- Detected declarations: `struct ignore_entry`, `function usb_usual_ignore_device`.
- Atlas domain: Driver Families / drivers/usb.
- Implementation status: source 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.