1 files changed, 5 insertions, 23 deletions
diff --git a/components/usb/SConscript b/components/usb/SConscript
index 0acf9f2305..5199a9bdd4 100644
--- a/components/usb/SConscript
+++ b/components/usb/SConscript
@@ -1,26 +1,8 @@
-Import('env')
-Import('projects')
 Import('RTT_ROOT')
-Import('rtconfig')
+from building import *
 
-# group definitions
-group = {}
-group['name'] = 'USB'
-group['src'] = Glob('*.c')
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/components/usb']
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
-group['DEPEND'] = 'RT_USING_USB'
+src	= Glob('*.c')
+CPPPATH = [RTT_ROOT + '/components/usb']
+group = DefineGroup('USB', src, depend = ['RT_USING_USB_DEVICE'], CPPPATH = CPPPATH)
 
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-objs = env.Object(group['src'])
-
-Return('objs')
+Return('group')