From: Jaroslav Kysela <perex@perex.cz>
Date: Mon, 1 Dec 2008 10:32:50 +0000 (+0100)
Subject: hda-analyzer: fixes for python 2.4
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=26ca71703ad18a868ee73abd158406aff98ca0ad;p=alsa.git

hda-analyzer: fixes for python 2.4
---

diff --git a/hda-analyzer/hda_analyzer.py b/hda-analyzer/hda_analyzer.py
index c117b1d..0c76be9 100755
--- a/hda-analyzer/hda_analyzer.py
+++ b/hda-analyzer/hda_analyzer.py
@@ -822,6 +822,9 @@ def main():
     print "No HDA codecs were found or insufficient priviledges for "
     print "/dev/snd/controlC* and /dev/snd/hwdepC*D* device files."
     print
+    print "You may also check, if you compiled HDA driver with HWDEP"
+    print "interface as well."
+    print
     print "Try run this program as root user."
   else:
     HDAAnalyzer()
diff --git a/hda-analyzer/hda_codec.py b/hda-analyzer/hda_codec.py
index 01daa8d..9490b5e 100644
--- a/hda-analyzer/hda_codec.py
+++ b/hda-analyzer/hda_codec.py
@@ -16,12 +16,18 @@ import os
 import struct
 from fcntl import ioctl
 
-IOCTL_INFO = 0x80dc4801
-IOCTL_PVERSION = 0x80044810
-IOCTL_VERB_WRITE = 0xc0084811
-IOCTL_GET_WCAPS = 0xc0084812
+def __ioctl_val(val):
+  # workaround for OverFlow bug in python 2.4
+  if val & 0x80000000:
+    return -((val^0xffffffff)+1)
+  return val
 
-CTL_IOCTL_CARD_INFO = 0x81785501
+IOCTL_INFO = __ioctl_val(0x80dc4801)
+IOCTL_PVERSION = __ioctl_val(0x80044810)
+IOCTL_VERB_WRITE = __ioctl_val(0xc0084811)
+IOCTL_GET_WCAPS = __ioctl_val(0xc0084812)
+
+CTL_IOCTL_CARD_INFO = __ioctl_val(0x81785501)
 
 AC_NODE_ROOT	= 0
 
@@ -1056,7 +1062,10 @@ def HDA_card_list():
   result = []
   for name in listdir('/dev/snd/'):
     if name.startswith('controlC'):
-      fd = os.open("/dev/snd/%s" % name, os.O_RDONLY)
+      try:
+	fd = os.open("/dev/snd/%s" % name, os.O_RDONLY)
+      except OSError, msg:
+      	continue
       info = struct.pack('ii16s16s32s80s16s80s128s', 0, 0, '', '', '', '', '', '', '')
       res = ioctl(fd, CTL_IOCTL_CARD_INFO, info)
       a = struct.unpack('ii16s16s32s80s16s80s128s', res)