From 38f51ec421afe5e946e76385fcc36e89cbedd00b Mon Sep 17 00:00:00 2001
From: Edouard DUPIN <yui.heero@gmail.com>
Date: Mon, 23 Mar 2015 23:14:45 +0100
Subject: [PATCH] [DEV] update ALSA error log.

---
 airtaudio/api/Alsa.cpp | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/airtaudio/api/Alsa.cpp b/airtaudio/api/Alsa.cpp
index a751376..358c06a 100644
--- a/airtaudio/api/Alsa.cpp
+++ b/airtaudio/api/Alsa.cpp
@@ -469,6 +469,15 @@ bool airtaudio::api::Alsa::probeDeviceOpenName(const std::string& _deviceName,
                                                audio::format _format,
                                                uint32_t *_bufferSize,
                                                const airtaudio::StreamOptions& _options) {
+	ATA_DEBUG("Probe ALSA device : ");
+	ATA_DEBUG("    _deviceName=" << _deviceName);
+	ATA_DEBUG("    _mode=" << _mode);
+	ATA_DEBUG("    _channels=" << _channels);
+	ATA_DEBUG("    _firstChannel=" << _firstChannel);
+	ATA_DEBUG("    _sampleRate=" << _sampleRate);
+	ATA_DEBUG("    _format=" << _format);
+	
+	
 	// I'm not using the "plug" interface ... too much inconsistent behavior.
 	unsigned nDevices = 0;
 	int32_t result, subdevice, card;
@@ -585,12 +594,16 @@ bool airtaudio::api::Alsa::probeDeviceOpenName(const std::string& _deviceName,
 	uint32_t value;
 	result = snd_pcm_hw_params_get_channels_max(hw_params, &value);
 	uint32_t deviceChannels = value;
-	if (    result < 0
-	     || deviceChannels < _channels + _firstChannel) {
+	if (result < 0) {
 		snd_pcm_close(phandle);
 		ATA_ERROR("requested channel parameters not supported by device (" << _deviceName << "), " << snd_strerror(result) << ".");
 		return false;
 	}
+	if (deviceChannels < _channels + _firstChannel) {
+		snd_pcm_close(phandle);
+		ATA_ERROR("requested channel " << _channels << " have : " << deviceChannels );
+		return false;
+	}
 	result = snd_pcm_hw_params_get_channels_min(hw_params, &value);
 	if (result < 0) {
 		snd_pcm_close(phandle);