Index: usb-unix.c
===================================================================
--- usb-unix.c	(revision 4581)
+++ usb-unix.c	(working copy)
@@ -55,6 +55,8 @@
 #  endif /* __sparc */
 #endif /* __sun */
 
+#include <pthread.h>
+#include <unistd.h>
 
 /*
  * Local functions...
@@ -66,7 +68,43 @@
 int	open_device(const char *uri);
 
 
+static volatile int gDone = 0;
+
 /*
+ *  Post a read to the device and write results to the backchannel
+ */
+static void*
+readthread(void *reference)
+{
+  int            fd = (int)reference;
+  unsigned char  readbuffer[512];
+  ssize_t        rbytes = 0;   
+  fd_set         fdset;
+  struct timeval t;
+  int            select_result = 0;
+
+  do
+  {
+    t.tv_sec  = 1;
+    t.tv_usec = 0;
+
+    FD_ZERO(&fdset);
+    FD_SET(fd, &fdset);
+
+    select_result = select(fd + 1, &fdset, NULL, NULL, &t);
+    if (select_result > 0)
+    {
+      rbytes = read(fd, readbuffer, sizeof(readbuffer));
+      if (rbytes > 0)
+        write(3, readbuffer, (size_t)rbytes);
+    }
+            
+  } while (!gDone);
+
+  return NULL;
+}
+
+/*
  * 'print_device()' - Print a file to a USB device.
  */
 
@@ -91,6 +129,8 @@
 #ifdef __linux
   unsigned int	status;			/* Port status (off-line, out-of-paper, etc.) */
 #endif /* __linux */
+  pthread_t     thr;
+  int           thread_created = 0;
 
 
  /*
@@ -180,6 +220,12 @@
   }
 #endif /* __linux && LP_POUTPA */
 
+ /* Create read thread */
+  if (pthread_create(&thr, NULL, readthread, (void*)fd ) == 0)
+    fputs("WARNING: Couldn't create read channel\n", stderr);
+  else
+    thread_created = 1;
+
  /*
   * Finally, send the print file...
   */
@@ -231,6 +277,13 @@
 	        (unsigned long)tbytes);
     }
   }
+  
+ /*
+  * stop scheduling reads
+  */
+  gDone = 1;
+  if (thread_created)
+    pthread_join(thr, NULL);
 
  /*
   * Close the USB port and return...
Index: Makefile
===================================================================
--- Makefile	(revision 4581)
+++ Makefile	(working copy)
@@ -152,7 +152,7 @@
 
 usb:	usb.o ../cups/$(LIBCUPS)
 	echo Linking $@...
-	$(CC) $(LDFLAGS) -o usb usb.o $(BACKLIBS) $(LIBS)
+	$(CC) $(LDFLAGS) -o usb usb.o $(BACKLIBS) $(LIBS) -lpthread
 usb.o:	usb.c usb-darwin.c usb-unix.c