diff --git a/nut-2.4.3-bz575334.patch b/nut-2.4.3-bz575334.patch
new file mode 100644
index 0000000..b14f8c0
--- /dev/null
+++ b/nut-2.4.3-bz575334.patch
@@ -0,0 +1,21 @@
+diff -up nut-2.4.3/drivers/libhid.c.bz575334 nut-2.4.3/drivers/libhid.c
+--- nut-2.4.3/drivers/libhid.c.bz575334	2010-03-22 17:34:16.251422549 +0100
++++ nut-2.4.3/drivers/libhid.c	2010-03-22 17:34:16.278422151 +0100
+@@ -141,7 +141,7 @@ static int refresh_report_buffer(reportb
+ {
+ 	int	id = pData->ReportID;
+ 	int	r;
+-	unsigned char	buf[SMALLBUF];
++	unsigned char	buf[8];
+ 
+ 	if (rbuf->ts[id] + age > time(NULL)) {
+ 		/* buffered report is still good; nothing to do */
+@@ -469,7 +469,7 @@ bool_t HIDSetItemValue(hid_dev_handle_t 
+  */
+ int HIDGetEvents(hid_dev_handle_t udev, HIDData_t **event, int eventsize)
+ {
+-	unsigned char	buf[SMALLBUF];
++	unsigned char	buf[8];
+ 	int		itemCount = 0;
+ 	int		buflen, r, i;
+ 	HIDData_t	*pData;
diff --git a/nut-2.4.3-udev.patch b/nut-2.4.3-udev.patch
new file mode 100644
index 0000000..e0dd95b
--- /dev/null
+++ b/nut-2.4.3-udev.patch
@@ -0,0 +1,21 @@
+change BUS to SUBSYSTEMS in udev rules
+
+There is one missing change in nut-usbups.rules.in: BUS -> SUBSYSTEMS. 
+Previous change (rev2071) missed this. Now, the latest udev started to complain:
+... udevd[31526]: BUS= will be removed in a future udev version ... 
+Information about udev change can be found in udev repo:
+http://git.kernel.org/?p=linux/hotplug/udev.git;a=commit;h=95776dc6ec174f47fa4dd4d8abf5d457223e5dd4
+
+Index: nut/scripts/udev/nut-usbups.rules.in
+===================================================================
+--- nut/scripts/udev/nut-usbups.rules.in	(revision 2405)
++++ new/scripts/udev/nut-usbups.rules.in	(working copy)
+@@ -3,7 +3,7 @@
+ ACTION!="add", GOTO="nut-usbups_rules_end"
+ SUBSYSTEM=="usb_device", GOTO="nut-usbups_rules_real"
+ SUBSYSTEM=="usb", GOTO="nut-usbups_rules_real"
+-BUS!="usb", GOTO="nut-usbups_rules_end"
++SUBSYSTEMS!="usb", GOTO="nut-usbups_rules_end"
+ 
+ LABEL="nut-usbups_rules_real"
+ #  Krauler UP-M500VA  - megatec_usb
diff --git a/nut.spec b/nut.spec
index 30b8cc8..16abba8 100644
--- a/nut.spec
+++ b/nut.spec
@@ -9,7 +9,7 @@
 Summary: Network UPS Tools
 Name: nut
 Version: 2.4.3
-Release: 1%{?dist}
+Release: 3%{?dist}
 Group: Applications/System
 License: GPLv2+
 Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -23,6 +23,12 @@ Patch0: nut-2.2.1-conf.patch
 #rejected upstream
 Patch1: nut-2.2.2-halpath.patch
 
+#from upstream, required for nut <= 2.4.3, bz#575334
+Patch2: nut-2.4.3-bz575334.patch
+
+#sent upstream, rhbz#573806
+Patch3: nut-2.4.3-udev.patch
+
 Requires: nut-client => 2.4.0 hal
 Requires(pre): hal
 Requires(post): fileutils chkconfig initscripts
@@ -116,6 +122,8 @@ necessary to develop NUT client applications.
 %setup -q
 %patch0 -p1 -b .conf
 %patch1 -p1 -b .halpath
+%patch2 -p1 -b .bz575334
+%patch3 -p1 -b .udevpatch
 
 %build
 autoreconf -i
@@ -356,6 +364,13 @@ rm -rf %{buildroot}
 %{_libdir}/pkgconfig/libupsclient.pc
 
 %changelog
+* Fri Mar 26 2010 Michal Hlavinka <mhlavink@redhat.com> - 2.4.3-3
+- replace BUS with SUBSYSTEMS in udev rules (#573806)
+
+* Mon Mar 23 2010 Michal Hlavinka <mhlavink@redhat.com> - 2.4.3-2
+- reduced size of buffer to maximum size supported by low-speed USB devices
+- fixes #575334
+
 * Wed Feb 24 2010 Michal Hlavinka <mhlavink@redhat.com> - 2.4.3-1
 - cyberpower driver was replaced by the powerpanel driver
 - general USB support has been vastly improved, including many bug