USB_INTERFACE_CLAIME(9) Host-Side Data Types and Macro USB_INTERFACE_CLAIME(9)NAME
usb_interface_claimed - returns true iff an interface is claimed
SYNOPSIS
int usb_interface_claimed(struct usb_interface * iface);
ARGUMENTS
iface
the interface being checked
DESCRIPTION
Returns true (nonzero) iff the interface is claimed, else false (zero). Callers must own the driver model's usb bus readlock. So driver
probe entries don't need extra locking, but other call contexts may need to explicitly claim that lock.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 USB_INTERFACE_CLAIME(9)
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STRUCT USB_DEVICE_DR(9) Host-Side Data Types and Macro STRUCT USB_DEVICE_DR(9)NAME
struct_usb_device_driver - identifies USB device driver to usbcore
SYNOPSIS
struct usb_device_driver {
const char * name;
int (* probe) (struct usb_device *udev);
void (* disconnect) (struct usb_device *udev);
int (* suspend) (struct usb_device *udev, pm_message_t message);
int (* resume) (struct usb_device *udev, pm_message_t message);
struct usbdrv_wrap drvwrap;
unsigned int supports_autosuspend:1;
};
MEMBERS
name
The driver name should be unique among USB drivers, and should normally be the same as the module name.
probe
Called to see if the driver is willing to manage a particular device. If it is, probe returns zero and uses dev_set_drvdata to
associate driver-specific data with the device. If unwilling to manage the device, return a negative errno value.
disconnect
Called when the device is no longer accessible, usually because it has been (or is being) disconnected or the driver's module is being
unloaded.
suspend
Called when the device is going to be suspended by the system.
resume
Called when the device is being resumed by the system.
drvwrap
Driver-model core structure wrapper.
supports_autosuspend
if set to 0, the USB core will not allow autosuspend for devices bound to this driver.
DESCRIPTION
USB drivers must provide all the fields listed above except drvwrap.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 STRUCT USB_DEVICE_DR(9)
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