[−][src]Trait rusb::UsbContext
Required methods
fn as_raw(&self) -> *mut libusb_context
Get the raw libusb_context pointer, for advanced use in unsafe code.
Provided methods
fn devices(&self) -> Result<DeviceList<Self>>
Returns a list of the current USB devices.
fn open_device_with_vid_pid(
&self,
vendor_id: u16,
product_id: u16
) -> Option<DeviceHandle<Self>>
&self,
vendor_id: u16,
product_id: u16
) -> Option<DeviceHandle<Self>>
Convenience function to open a device by its vendor ID and product ID.
This function is provided as a convenience for building prototypes without having to
iterate a DeviceList
. It is not meant for production
applications.
Returns a device handle for the first device found matching vendor_id
and product_id
.
On error, or if the device could not be found, it returns None
.
fn set_log_level(&mut self, level: LogLevel)
Sets the log level of a libusb
for context.
fn register_callback(
&self,
vendor_id: Option<u16>,
product_id: Option<u16>,
class: Option<u8>,
callback: Box<dyn Hotplug<Self>>
) -> Result<Registration>
&self,
vendor_id: Option<u16>,
product_id: Option<u16>,
class: Option<u8>,
callback: Box<dyn Hotplug<Self>>
) -> Result<Registration>