#define ARRAY_AND_SIZE(a) (a), ARRAY_SIZE(a)
#endif
+/**
+ * Read a 16 bits big endian integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define RB16(x) ((((const uint8_t*)(x))[0] << 8) | \
+ ((const uint8_t*)(x))[1])
+
+/**
+ * Read a 16 bits little endian integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define RL16(x) ((((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+
+/**
+ * Read a 32 bits big endian integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define RB32(x) ((((const uint8_t*)(x))[0] << 24) | \
+ (((const uint8_t*)(x))[1] << 16) | \
+ (((const uint8_t*)(x))[2] << 8) | \
+ ((const uint8_t*)(x))[3])
+
+/**
+ * Read a 32 bits little endian integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define RL32(x) ((((const uint8_t*)(x))[3] << 24) | \
+ (((const uint8_t*)(x))[2] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+
/* Portability fixes for FreeBSD. */
#ifdef __FreeBSD__
#define LIBUSB_CLASS_APPLICATION 0xfe
SR_PRIV int sr_warn(const char *format, ...);
SR_PRIV int sr_err(const char *format, ...);
+/* Message logging helpers with subsystem-specific prefix string. */
+#ifndef NO_LOG_WRAPPERS
+#define sr_log(l, s, args...) sr_log(l, "%s: " s, LOG_PREFIX, ## args)
+#define sr_spew(s, args...) sr_spew("%s: " s, LOG_PREFIX, ## args)
+#define sr_dbg(s, args...) sr_dbg("%s: " s, LOG_PREFIX, ## args)
+#define sr_info(s, args...) sr_info("%s: " s, LOG_PREFIX, ## args)
+#define sr_warn(s, args...) sr_warn("%s: " s, LOG_PREFIX, ## args)
+#define sr_err(s, args...) sr_err("%s: " s, LOG_PREFIX, ## args)
+#endif
+
/*--- device.c --------------------------------------------------------------*/
SR_PRIV struct sr_probe *sr_probe_new(int index, int type,