Name

struct usb_driver — identifies USB interface driver to usbcore

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 interface on a device. If it is, probe returns zero and uses dev_set_drvdata to associate driver-specific data with the interface. It may also use usb_set_interface to specify the appropriate altsetting. If unwilling to manage the interface, return a negative errno value.

disconnect

Called when the interface is no longer accessible, usually because its device has been (or is being) disconnected or the driver module is being unloaded.

ioctl

Used for drivers that want to talk to userspace through the “usbfs” filesystem. This lets devices provide ways to expose information to user space regardless of where they do (or don't) show up otherwise in the filesystem.

suspend

Called when the device is going to be suspended by the system.

resume

Called when the device is being resumed by the system.

reset_resume

Called when the suspended device has been reset instead of being resumed.

pre_reset

Called by usb_reset_composite_device when the device is about to be reset.

post_reset

Called by usb_reset_composite_device after the device has been reset, or in lieu of resume following a reset-resume (i.e., the device is reset instead of being resumed, as might happen if power was lost). The second argument tells which is the reason.

id_table

USB drivers use ID table to support hotplugging. Export this with MODULE_DEVICE_TABLE(usb,...). This must be set or your driver's probe function will never get called.

dynids

used internally to hold the list of dynamically added device ids for this driver.

drvwrap

Driver-model core structure wrapper.

no_dynamic_id

if set to 1, the USB core will not allow dynamic ids to be added to this driver by preventing the sysfs file from being created.

supports_autosuspend

if set to 0, the USB core will not allow autosuspend for interfaces bound to this driver.