X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=bmusb.cpp;h=e9a912524b25a25e809e2f8b35c275b3f1227236;hb=d53ab27c6945636a8031e1868c503adeb7dad557;hp=7c2108203f7904d76bdb9de9a49c8c1f3964ae3f;hpb=8c728daab202458bba567bb4e5c1d0cbe2f8ab9c;p=bmusb

diff --git a/bmusb.cpp b/bmusb.cpp
index 7c21082..e9a9125 100644
--- a/bmusb.cpp
+++ b/bmusb.cpp
@@ -1013,6 +1013,12 @@ libusb_device_handle *open_card(unsigned card_index, libusb_device *dev, string
 
 unsigned BMUSBCapture::num_cards()
 {
+	int rc = libusb_init(nullptr);
+	if (rc < 0) {
+		fprintf(stderr, "Error initializing libusb: %s\n", libusb_error_name(rc));
+		exit(1);
+	}
+
 	vector<USBCardDevice> found_cards = find_all_cards();
 	unsigned ret = found_cards.size();
 	for (size_t i = 0; i < found_cards.size(); ++i) {