atten-pps3xxx: Initial driver skeleton.

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

diff --git a/hardware/common/usb.c b/hardware/common/usb.c
index c4d78f90a236acd036c4ad7e60a1ea902f225fa1..6e678fdb401d1d681000fc3a6e273c7374656957 100644 (file)
--- a/hardware/common/usb.c
+++ b/hardware/common/usb.c
@@ -33,14 +33,7 @@
 #define SUBCLASS_USBTMC 0x03
 #define USBTMC_USB488   0x01
 
-/* Message logging helpers with subsystem-specific prefix string. */
-#define LOG_PREFIX "usb: "
-#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
-#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
-#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
-#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
-#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
-#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
+#define LOG_PREFIX "usb"
 
 /**
  * Find USB devices according to a connection string.
@@ -267,8 +260,11 @@ SR_PRIV int usb_callback(int fd, int revents, void *cb_data)
 
        g_mutex_lock(&ctx->usb_mutex);
        ret = ctx->usb_cb(fd, revents, ctx->usb_cb_data);
-       ResetEvent(ctx->usb_event);
-       g_mutex_unlock(&ctx->usb_mutex);
+
+       if (ctx->usb_thread_running) {
+               ResetEvent(ctx->usb_event);
+               g_mutex_unlock(&ctx->usb_mutex);
+       }
 
        return ret;
 }