hantek-dso: use default libusb context

[libsigrok.git] / hardware / hantek-dso / dso.c

diff --git a/hardware/hantek-dso/dso.c b/hardware/hantek-dso/dso.c
index 1d8e60b3f21f310fb5f9320b64d19939b0461c65..8480f07f854a096ee4d5dba86f4826d78c25c483 100644 (file)
--- a/hardware/hantek-dso/dso.c
+++ b/hardware/hantek-dso/dso.c
@@ -28,7 +28,6 @@
 #include <libusb.h>
 
 extern struct sr_dev_driver hantek_dso_driver_info;
-static struct sr_dev_driver *hdi = &hantek_dso_driver_info;
 
 
 static int send_begin(struct dev_context *devc)
@@ -108,11 +107,9 @@ SR_PRIV int dso_open(struct sr_dev_inst *sdi)
 {
        libusb_device **devlist;
        struct libusb_device_descriptor des;
-       struct drv_context *drvc;
        struct dev_context *devc;
        int err, skip, i;
 
-       drvc = hdi->priv;
        devc = sdi->priv;
 
        if (sdi->status == SR_ST_ACTIVE)
@@ -120,7 +117,7 @@ SR_PRIV int dso_open(struct sr_dev_inst *sdi)
                return SR_ERR;
 
        skip = 0;
-       libusb_get_device_list(drvc->usb_context, &devlist);
+       libusb_get_device_list(NULL, &devlist);
        for (i = 0; devlist[i]; i++) {
                if ((err = libusb_get_device_descriptor(devlist[i], &des))) {
                        sr_err("hantek-dso: failed to get device descriptor: %d", err);