From b8a1354117cd02efac4792ce75510fdb15def1b4 Mon Sep 17 00:00:00 2001
From: nicey0 <53410840+nicey0@users.noreply.github.com>
Date: Fri, 5 Jun 2020 16:48:17 -0300
Subject: [PATCH] backlight: Just match amdgpu_bl prefix (#2122)

Some devices can have "amdgpu_bl1" or "amdgpu_bl2", but the code hardcoded in the value "amdgpu_bl0". This change tests based on the first characters: "amdgpu_bl".
---
 src/modules/backlight.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/modules/backlight.cpp b/src/modules/backlight.cpp
index e8e9f9f8..3b32aa8b 100644
--- a/src/modules/backlight.cpp
+++ b/src/modules/backlight.cpp
@@ -51,7 +51,8 @@ namespace modules {
      * The only sensible way is to use the 'brightness' file instead
      * Ref: https://github.com/Alexays/Waybar/issues/335
      */
-    auto path_backlight_val = m_path_backlight + "/" + (card == "amdgpu_bl0" ? "brightness" : "actual_brightness");
+    std::string brightness_type = ((card.substr(0, 9) == "amdgpu_bl") ? "brightness" : "actual_brightness");
+    auto path_backlight_val = m_path_backlight + "/" + brightness_type;
 
     m_val.filepath(path_backlight_val);
     m_max.filepath(m_path_backlight + "/max_brightness");