From 47934e3c7ca64bfb82fbcede47491084a9e9f266 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Sun, 25 Apr 2021 09:28:58 +0300
Subject: Restore dynamic trait polymorphism with handles in functions

---
 src/lib.rs | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'src/lib.rs')

diff --git a/src/lib.rs b/src/lib.rs
index 9fe48b3..65d545c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,17 +16,17 @@ const KNOWN_DEVICES: [(u16, u16, &str); 2] = [
 ];
 
 pub struct RtlSdr {
-    // handle: RtlSdrDeviceHandle,
+    handle: RtlSdrDeviceHandle,
 }
 
 impl RtlSdr {
     pub fn new() -> RtlSdr {
         pretty_env_logger::init();
-        let handle = Self::open_device();
-        RtlSdr {}
+        let handle = Self::open_device().unwrap();
+        RtlSdr { handle }
     }
 
-    pub fn open_device() {
+    pub fn open_device() -> Option<RtlSdrDeviceHandle> {
         for dev in rusb::devices().unwrap().iter() {
             let desc = dev.device_descriptor().unwrap();
             let vid = desc.vendor_id();
@@ -50,9 +50,12 @@ impl RtlSdr {
                     handle.set_i2c_repeater(true);
 
                     handle.init_tuner();
+
+                    return Some(handle);
                 }
             }
         }
+        None
     }
 
     // pub fn set_sample_rate(&self, samp_rate: u32) {
-- 
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