build: Portability fixes.

[libsigrok.git] / hardware / common / ezusb.c

diff --git a/hardware/common/ezusb.c b/hardware/common/ezusb.c
index 77817a71bc36c1bc0f9307087ad5232ff11054ed..044b4642705458d9c91b4b0c39b5a109a38a24dc 100644 (file)
--- a/hardware/common/ezusb.c
+++ b/hardware/common/ezusb.c
@@ -1,5 +1,5 @@
 /*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
  *
  * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
  *
@@ -30,14 +30,7 @@
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
 
-/* Message logging helpers with driver-specific prefix string. */
-#define DRIVER_LOG_DOMAIN "ezusb: "
-#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
-#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
+#define LOG_PREFIX "ezusb"
 
 SR_PRIV int ezusb_reset(struct libusb_device_handle *hdl, int set_clear)
 {
@@ -108,9 +101,12 @@ SR_PRIV int ezusb_upload_firmware(libusb_device *dev, int configuration,
                return SR_ERR;
        }
 
-/* Neither Windows/MinGW nor Darwin/Mac support these libusb-1.0 calls. */
-#if !defined(_WIN32) && !defined(__APPLE__)
-       if (libusb_kernel_driver_active(hdl, 0)) {
+/*
+ * The libusbx darwin backend is broken: it can report a kernel driver being
+ * active, but detaching it always returns an error.
+ */
+#if !defined(__APPLE__)
+       if (libusb_kernel_driver_active(hdl, 0) == 1) {
                if ((ret = libusb_detach_kernel_driver(hdl, 0)) < 0) {
                        sr_err("failed to detach kernel driver: %s",
                                        libusb_error_name(ret));