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-rw-r--r--src/librtlsdr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/librtlsdr.c b/src/librtlsdr.c
index d72a0f5..213e96c 100644
--- a/src/librtlsdr.c
+++ b/src/librtlsdr.c
@@ -1751,7 +1751,7 @@ static int _rtlsdr_alloc_async_buffers(rtlsdr_dev_t *dev)
dev->xfer_buf = malloc(dev->xfer_buf_num * sizeof(unsigned char *));
memset(dev->xfer_buf, 0, dev->xfer_buf_num * sizeof(unsigned char *));
-#if defined (__linux__) && LIBUSB_API_VERSION >= 0x01000105
+#if defined(ENABLE_ZEROCOPY) && defined (__linux__) && LIBUSB_API_VERSION >= 0x01000105
fprintf(stderr, "Allocating %d zero-copy buffers\n", dev->xfer_buf_num);
dev->use_zerocopy = 1;