Merge pull request #57 from jazzychad/jc-negative-integer-crash-fix

Fix crash for negative uvcUnit integers (Issue #42)
Itaybre · Apr 29, 2022 · 021ec45 · 021ec45
2 parents afd68a5 + edb2d4f
commit 021ec45
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/CameraController/UVC/Models/Controls/UVCControl.swift b/CameraController/UVC/Models/Controls/UVCControl.swift
@@ -31,6 +31,9 @@ class UVCControl {
     }
 
     func getDataFor(type: UVCRequestCodes, length: Int) -> Int {
+
+        guard uvcUnit >= 0 else { return 0 }
+
         var value: Int = 0
 
         let requestType = USBmakebmRequestType(direction: kUSBIn, type: kUSBClass, recipient: kUSBInterface)
@@ -60,6 +63,9 @@ class UVCControl {
     }
 
     func setData(value: Int, length: Int) -> Bool {
+
+        guard uvcUnit >= 0 else { return false }
+
         var ref = value
 
         let requestType = USBmakebmRequestType(direction: kUSBOut, type: kUSBClass, recipient: kUSBInterface)