From b1cbd1bf34734e640f1cadcdbb9fe9d75833a69a Mon Sep 17 00:00:00 2001
From: Grazfather <grazfather@gmail.com>
Date: Sun, 18 Feb 2024 03:37:04 -0500
Subject: [PATCH] hal: dma: Cast channel index in claim_unused_channel (#170)

`i` is `usize` but `channel()` expects a `u4`.
---
 board-support/raspberrypi-rp2040/src/hal/dma.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/board-support/raspberrypi-rp2040/src/hal/dma.zig b/board-support/raspberrypi-rp2040/src/hal/dma.zig
index 469966f..fcbc3d8 100644
--- a/board-support/raspberrypi-rp2040/src/hal/dma.zig
+++ b/board-support/raspberrypi-rp2040/src/hal/dma.zig
@@ -26,7 +26,7 @@ pub fn claim_unused_channel() ?Channel {
     for (0..num_channels) |i| {
         if (claimed_channels.get(i)) {
             claimed_channels.set(i, true);
-            return channel(i);
+            return channel(@intCast(i));
         }
     }