X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fasix-sigma%2Fprotocol.c;h=ee7ce02211e373dbc55f13d82ac3d50ca77deefc;hb=ac9534f48a8656a52b1cfc504915531afd0b9f70;hp=a81ec2f62f05344c877488ea1deeb9ebcc752cda;hpb=7bcf21683e6b8f77d55eaab7da5ea0bbe2949a6b;p=libsigrok.git

diff --git a/src/hardware/asix-sigma/protocol.c b/src/hardware/asix-sigma/protocol.c
index a81ec2f6..ee7ce022 100644
--- a/src/hardware/asix-sigma/protocol.c
+++ b/src/hardware/asix-sigma/protocol.c
@@ -554,6 +554,7 @@ SR_PRIV int sigma_set_samplerate(const struct sr_dev_inst *sdi, uint64_t sampler
 	struct drv_context *drvc;
 	size_t i;
 	int ret;
+	int num_channels;
 
 	devc = sdi->priv;
 	drvc = sdi->driver->context;
@@ -572,15 +573,16 @@ SR_PRIV int sigma_set_samplerate(const struct sr_dev_inst *sdi, uint64_t sampler
 	 * firmware is required and higher rates might limit the set
 	 * of available channels.
 	 */
+	num_channels = devc->num_channels;
 	if (samplerate <= SR_MHZ(50)) {
 		ret = upload_firmware(drvc->sr_ctx, 0, devc);
-		devc->num_channels = 16;
+		num_channels = 16;
 	} else if (samplerate == SR_MHZ(100)) {
 		ret = upload_firmware(drvc->sr_ctx, 1, devc);
-		devc->num_channels = 8;
+		num_channels = 8;
 	} else if (samplerate == SR_MHZ(200)) {
 		ret = upload_firmware(drvc->sr_ctx, 2, devc);
-		devc->num_channels = 4;
+		num_channels = 4;
 	}
 
 	/*
@@ -589,6 +591,7 @@ SR_PRIV int sigma_set_samplerate(const struct sr_dev_inst *sdi, uint64_t sampler
 	 * an "event" (memory organization internal to the device).
 	 */
 	if (ret == SR_OK) {
+		devc->num_channels = num_channels;
 		devc->cur_samplerate = samplerate;
 		devc->samples_per_event = 16 / devc->num_channels;
 		devc->state.state = SIGMA_IDLE;