X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=alsa_pool.cpp;h=1c9c4d389a46fc5246a4693439fd9f09b77bfdfb;hb=9e47a2f661b9d292598ef0277e507458e3dad62f;hp=348c6232303ab561d3a4039ca69932261bd3e8bc;hpb=f0dacf505189f0cadcd89a2b632000fd9d012bd2;p=nageru

diff --git a/alsa_pool.cpp b/alsa_pool.cpp
index 348c623..1c9c4d3 100644
--- a/alsa_pool.cpp
+++ b/alsa_pool.cpp
@@ -185,19 +185,24 @@ ALSAPool::ProbeResult ALSAPool::probe_device_once(unsigned card_index, unsigned
 	}
 	unique_ptr<snd_ctl_t, decltype(snd_ctl_close)*> ctl_closer(ctl, snd_ctl_close);
 
+	snprintf(address, sizeof(address), "hw:%d,%d", card_index, dev_index);
+
 	snd_pcm_info_t *pcm_info;
 	snd_pcm_info_alloca(&pcm_info);
 	snd_pcm_info_set_device(pcm_info, dev_index);
 	snd_pcm_info_set_subdevice(pcm_info, 0);
 	snd_pcm_info_set_stream(pcm_info, SND_PCM_STREAM_CAPTURE);
-	if (snd_ctl_pcm_info(ctl, pcm_info) < 0) {
+	err = snd_ctl_pcm_info(ctl, pcm_info);
+	if (err == -ENOENT) {
+		// Not a capture card.
+		return ALSAPool::ProbeResult::FAILURE;
+	}
+	if (err < 0) {
 		// Not available for capture.
-		printf("%s: Not available for capture.\n", address);
+		printf("%s: Not available for capture. %d\n", address, err);
 		return ALSAPool::ProbeResult::DEFER;
 	}
 
-	snprintf(address, sizeof(address), "hw:%d,%d", card_index, dev_index);
-
 	unsigned num_channels = 0;
 
 	// Find all channel maps for this device, and pick out the one