hardware: Make USB drivers use the libusb_context in struct sr_context

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

diff --git a/hardware/hantek-dso/dso.c b/hardware/hantek-dso/dso.c
index 0f1285a33d69ebbfc05122f1d6bea7b597e167d7..0167f9636397646ff9fbd47ad43661884bed69c7 100644 (file)
--- a/hardware/hantek-dso/dso.c
+++ b/hardware/hantek-dso/dso.c
@@ -106,6 +106,7 @@ SR_PRIV int dso_open(struct sr_dev_inst *sdi)
        libusb_device **devlist;
        struct libusb_device_descriptor des;
        struct dev_context *devc;
+       struct drv_context *drvc = hantek_dso_driver_info.priv;
        int err, skip, i;
 
        devc = sdi->priv;
@@ -115,7 +116,7 @@ SR_PRIV int dso_open(struct sr_dev_inst *sdi)
                return SR_ERR;
 
        skip = 0;
-       libusb_get_device_list(NULL, &devlist);
+       libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
        for (i = 0; devlist[i]; i++) {
                if ((err = libusb_get_device_descriptor(devlist[i], &des))) {
                        sr_err("Failed to get device descriptor: %d.", err);