X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Fhantek-dso%2Fapi.c;h=01a080017e2eae8339a828e0c295e97adf3467d1;hb=d4928d7102c6b2f9f7aa51a1b98669bf148fff80;hp=e221b5f20a871d49c0e20ae6c789ff13ac344f89;hpb=34f06b903e3529a73feb7a6e74fae934a999f821;p=libsigrok.git

diff --git a/hardware/hantek-dso/api.c b/hardware/hantek-dso/api.c
index e221b5f2..01a08001 100644
--- a/hardware/hantek-dso/api.c
+++ b/hardware/hantek-dso/api.c
@@ -262,12 +262,7 @@ static int hw_init(struct sr_context *sr_ctx)
 		return SR_ERR_MALLOC;
 	}
 
-	if (libusb_init(NULL) != 0) {
-		g_free(drvc);
-		sr_err("Failed to initialize USB.");
-		return SR_ERR;
-	}
-
+	drvc->sr_ctx = sr_ctx;
 	hdi->priv = drvc;
 
 	return SR_OK;
@@ -294,10 +289,11 @@ static GSList *hw_scan(GSList *options)
 	clear_instances();
 
 	/* Find all Hantek DSO devices and upload firmware to all of them. */
-	libusb_get_device_list(NULL, &devlist);
+	libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
 	for (i = 0; devlist[i]; i++) {
 		if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
-			sr_err("Failed to get device descriptor: %d.", ret);
+			sr_err("Failed to get device descriptor: %s.",
+			       libusb_error_name(ret));
 			continue;
 		}
 
@@ -395,7 +391,8 @@ static int hw_dev_open(struct sr_dev_inst *sdi)
 
 	err = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE);
 	if (err != 0) {
-		sr_err("Unable to claim interface: %d.", err);
+		sr_err("Unable to claim interface: %s.",
+		       libusb_error_name(err));
 		return SR_ERR;
 	}
 
@@ -418,8 +415,6 @@ static int hw_cleanup(void)
 
 	clear_instances();
 
-	libusb_exit(NULL);
-
 	return SR_OK;
 }
 
@@ -739,6 +734,7 @@ static int handle_event(int fd, int revents, void *cb_data)
 	struct sr_datafeed_packet packet;
 	struct timeval tv;
 	struct dev_context *devc;
+	struct drv_context *drvc = hdi->priv;
 	const struct libusb_pollfd **lupfd;
 	int num_probes, i;
 	uint32_t trigger_offset;
@@ -756,7 +752,7 @@ static int handle_event(int fd, int revents, void *cb_data)
 		 * TODO: Doesn't really cancel pending transfers so they might
 		 * come in after SR_DF_END is sent.
 		 */
-		lupfd = libusb_get_pollfds(NULL);
+		lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
 		for (i = 0; lupfd[i]; i++)
 			sr_source_remove(lupfd[i]->fd);
 		free(lupfd);
@@ -771,7 +767,7 @@ static int handle_event(int fd, int revents, void *cb_data)
 
 	/* Always handle pending libusb events. */
 	tv.tv_sec = tv.tv_usec = 0;
-	libusb_handle_events_timeout(NULL, &tv);
+	libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv);
 
 	/* TODO: ugh */
 	if (devc->dev_state == NEW_CAPTURE) {
@@ -855,6 +851,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 	struct sr_datafeed_header header;
 	struct sr_datafeed_meta_analog meta;
 	struct dev_context *devc;
+	struct drv_context *drvc = hdi->priv;
 	int i;
 
 	if (sdi->status != SR_ST_ACTIVE)
@@ -875,7 +872,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 		return SR_ERR;
 
 	devc->dev_state = CAPTURE;
-	lupfd = libusb_get_pollfds(NULL);
+	lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx);
 	for (i = 0; lupfd[i]; i++)
 		sr_source_add(lupfd[i]->fd, lupfd[i]->events, TICK,
 			      handle_event, (void *)sdi);