Add patch to disable the use of the back channel for USB on NetBSD.

This is based on a suggestion by Yorick Hardy, who reports that it
improved behavior.  Without the patch, the cups usb driver tries to
read status from ulpt(4) (for most printers), and this results in no
output.

1 files changed, 16 insertions, 0 deletions

diff --git a/print/cups/patches/patch-au b/print/cups/patches/patch-au
new file mode 100644
index 00000000000..b30aab44f60
--- /dev/null
+++ b/print/cups/patches/patch-au
@@ -0,0 +1,16 @@
+$NetBSD: patch-au,v 1.6 2007/04/02 12:11:01 gdt Exp $
+
+--- backend/usb-unix.c.orig	2007-02-20 08:41:07.000000000 -0500
++++ backend/usb-unix.c
+@@ -90,6 +90,11 @@ print_device(const char *uri,		/* I - De
+              strcasecmp(hostname, "Konica Minolta") &&
+              strcasecmp(hostname, "Minolta");
+ 
++#ifdef __NetBSD__
++    /* XXX Use configure test to see if reading from ulpt(4) works. */
++    use_bc = 0;
++#endif
++
+     if ((device_fd = open_device(uri, &use_bc)) == -1)
+     {
+       if (getenv("CLASS") != NULL)