From 6bcbd1b42e47019d06e01fd69baaf7ae5e50fcad Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 15 Oct 2020 22:21:25 +0530
Subject: [PATCH] /proc/bus/usb doesn't exist anymore

---
 src/calibre/test_build.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/test_build.py b/src/calibre/test_build.py
index de45f0cb66..5c1dc4aa50 100644
--- a/src/calibre/test_build.py
+++ b/src/calibre/test_build.py
@@ -104,7 +104,7 @@ class BuildTest(unittest.TestCase):
 
     def test_plugins(self):
         exclusions = set()
-        if islinux and (not os.path.exists('/dev/bus/usb') and not os.path.exists('/proc/bus/usb')):
+        if islinux and not os.path.exists('/dev/bus/usb'):
             # libusb fails to initialize in containers without USB subsystems
             exclusions.update(set('libusb libmtp'.split()))
         for name in plugins: