sr: Mark API functions with SR_API/SR_PRIV.

[libsigrok.git] / hardware / alsa / alsa.c

diff --git a/hardware/alsa/alsa.c b/hardware/alsa/alsa.c
index 527a7e5de49fa992521e61360e403475379f2b78..ddfb95fa9f9a6c020ba6337d669ce356d9f87959 100644 (file)
--- a/hardware/alsa/alsa.c
+++ b/hardware/alsa/alsa.c
@@ -18,7 +18,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-#include "config.h" /* Must come before sigrok.h */
+/* Note: This driver doesn't compile, analog support in sigrok is WIP. */
+
 #include <stdlib.h>
 #include <unistd.h>
 #include <string.h>
@@ -30,6 +31,17 @@
 #define SAMPLE_WIDTH 16
 #define AUDIO_DEV "plughw:0,0"
 
+struct sr_analog_probe {
+       uint8_t att;
+       uint8_t res;    /* Needs to be a power of 2, FIXME */
+       uint16_t val;   /* Max hardware ADC width is 16bits */
+};
+
+struct sr_analog_sample {
+       uint8_t num_probes; /* Max hardware probes is 256 */
+       struct sr_analog_probe probes[];
+};
+
 static int capabilities[] = {
        SR_HWCAP_SAMPLERATE,
        SR_HWCAP_LIMIT_SAMPLES,