hid/
devices.rs

1use std::marker::PhantomData;
2
3use sys::*;
4use Device;
5
6/// An iterator over the available devices.
7pub struct Devices<'a> {
8	ptr: *mut hid_device_info,
9	cur: *mut hid_device_info,
10
11	_marker: PhantomData<&'a ()>,
12}
13
14impl<'a> Devices<'a> {
15	#[doc(hidden)]
16	pub unsafe fn new(vendor: Option<u16>, product: Option<u16>) -> Self {
17		let list = hid_enumerate(vendor.unwrap_or(0), product.unwrap_or(0));
18
19		Devices {
20			ptr: list,
21			cur: list,
22
23			_marker: PhantomData,
24		}
25	}
26}
27
28impl<'a> Iterator for Devices<'a> {
29	type Item = Device<'a>;
30
31	fn next(&mut self) -> Option<Self::Item> {
32		if self.cur.is_null() {
33			return None;
34		}
35
36		unsafe {
37			let info = Device::new(self.cur);
38			self.cur = (*self.cur).next;
39
40			Some(info)
41		}
42	}
43}
44
45impl<'a> Drop for Devices<'a> {
46	fn drop(&mut self) {
47		unsafe {
48			hid_free_enumeration(self.ptr);
49		}
50	}
51}
hid/devices.rs

hid/
devices.rs
