tools/usb/usbip/libsrc/usbip_device_driver.c
Source file repositories/reference/linux-study-clean/tools/usb/usbip/libsrc/usbip_device_driver.c
File Facts
- System
- Linux kernel
- Corpus path
tools/usb/usbip/libsrc/usbip_device_driver.c- Extension
.c- Size
- 3813 bytes
- Lines
- 159
- Domain
- Support Tooling And Documentation
- Bucket
- tools
- Inferred role
- Support Tooling And Documentation: implementation source
- Status
- source implementation candidate
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
fcntl.hstring.hlinux/usb/ch9.hunistd.husbip_host_common.husbip_device_driver.h
Detected Declarations
function read_usb_vudc_devicefunction is_my_devicefunction usbip_device_driver_open
Annotated Snippet
if (!strcmp(speed_names[i].name, speed)) {
dev->speed = speed_names[i].speed;
break;
}
}
}
/* Only used for user output, little sense to output them in general */
dev->bNumInterfaces = 0;
dev->bConfigurationValue = 0;
dev->busnum = 0;
name = udev_device_get_sysname(plat);
strncpy(dev->busid, name, SYSFS_BUS_ID_SIZE - 1);
dev->busid[SYSFS_BUS_ID_SIZE - 1] = '\0';
return 0;
err:
fclose(fd);
return -1;
}
static int is_my_device(struct udev_device *dev)
{
const char *driver;
driver = udev_device_get_property_value(dev, "USB_UDC_NAME");
return driver != NULL && !strcmp(driver, USBIP_DEVICE_DRV_NAME);
}
static int usbip_device_driver_open(struct usbip_host_driver *hdriver)
{
int ret;
hdriver->ndevs = 0;
INIT_LIST_HEAD(&hdriver->edev_list);
ret = usbip_generic_driver_open(hdriver);
if (ret || hdriver->ndevs == 0)
info("please load " USBIP_CORE_MOD_NAME ".ko and "
USBIP_DEVICE_DRV_NAME ".ko");
return ret;
}
struct usbip_host_driver device_driver = {
.edev_list = LIST_HEAD_INIT(device_driver.edev_list),
.udev_subsystem = "udc",
.ops = {
.open = usbip_device_driver_open,
.close = usbip_generic_driver_close,
.refresh_device_list = usbip_generic_refresh_device_list,
.get_device = usbip_generic_get_device,
.read_device = read_usb_vudc_device,
.is_my_device = is_my_device,
},
};
Annotation
- Immediate include surface: `fcntl.h`, `string.h`, `linux/usb/ch9.h`, `unistd.h`, `usbip_host_common.h`, `usbip_device_driver.h`.
- Detected declarations: `function read_usb_vudc_device`, `function is_my_device`, `function usbip_device_driver_open`.
- Atlas domain: Support Tooling And Documentation / tools.
- 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.