1 files changed, 9 insertions, 0 deletions
diff --git a/zaptel.h b/zaptel.h
index c33c6ad..c63bc23 100644
--- a/zaptel.h
+++ b/zaptel.h
@@ -326,6 +326,10 @@ struct zt_versioninfo {
 	char echo_canceller[80];
 };
 
+struct zt_hwgain{
+	int newgain; /* desired gain in dB but x10.  -3.5dB would be -35 */
+	int tx:1; /* 0=rx; 1=tx */
+};
 
 /* ioctl definitions */
 #define ZT_CODE	'J'
@@ -631,6 +635,11 @@ struct zt_versioninfo {
 #define ZT_LOOPBACK _IOW(ZT_CODE, 58, int)
 
 /*
+ * Set the HW gain for a device
+ */
+#define ZT_SET_HWGAIN   _IOW (ZT_CODE, 86, struct zt_hwgain)
+
+/*
  *  60-80 are reserved for private drivers
  *  80-85 are reserved for dynamic span stuff
  */