X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Falsa%2Falsa.c;h=d86ac05fd39f619378b195ee991ad6ea956052eb;hb=9edfee3ee31bc6cd7657392f2c9ac28ccf7a7dce;hp=f15e91db1295641e83c5d11373afc5fa6ea804f0;hpb=ebc347388240e025181265f7d3d63a22f7bd5da9;p=libsigrok.git

diff --git a/hardware/alsa/alsa.c b/hardware/alsa/alsa.c
index f15e91db..d86ac05f 100644
--- a/hardware/alsa/alsa.c
+++ b/hardware/alsa/alsa.c
@@ -42,7 +42,7 @@ struct sr_analog_sample {
 	struct sr_analog_probe probes[];
 };
 
-static int hwcaps[] = {
+static const int hwcaps[] = {
 	SR_HWCAP_SAMPLERATE,
 	SR_HWCAP_LIMIT_SAMPLES,
 	SR_HWCAP_CONTINUOUS,
@@ -168,7 +168,7 @@ static int hw_cleanup(void)
 	return SR_OK;
 }
 
-static void *hw_dev_info_get(int dev_index, int dev_info_id)
+static const void *hw_dev_info_get(int dev_index, int dev_info_id)
 {
 	struct sr_dev_inst *sdi;
 	struct context *ctx;
@@ -207,12 +207,12 @@ static int hw_dev_status_get(int dev_index)
 	return SR_ST_ACTIVE;
 }
 
-static int *hw_hwcap_get_all(void)
+static const int *hw_hwcap_get_all(void)
 {
 	return hwcaps;
 }
 
-static int hw_dev_config_set(int dev_index, int hwcap, void *value)
+static int hw_dev_config_set(int dev_index, int hwcap, const void *value)
 {
 	struct sr_dev_inst *sdi;
 	struct context *ctx;
@@ -225,10 +225,10 @@ static int hw_dev_config_set(int dev_index, int hwcap, void *value)
 	case SR_HWCAP_PROBECONFIG:
 		return SR_OK;
 	case SR_HWCAP_SAMPLERATE:
-		ctx->cur_rate = *(uint64_t *)value;
+		ctx->cur_rate = *(const uint64_t *)value;
 		return SR_OK;
 	case SR_HWCAP_LIMIT_SAMPLES:
-		ctx->limit_samples = *(uint64_t *)value;
+		ctx->limit_samples = *(const uint64_t *)value;
 		return SR_OK;
 	default:
 		return SR_ERR;