first commit for chrg

rt-thread/components/drivers/sdio/SConscript

@@ -0,0 +1,23 @@
+Import('RTT_ROOT')
+from building import *
+
+cwd = GetCurrentDir()
+src = Split("""
+dev_block.c
+dev_mmcsd_core.c
+dev_sd.c
+dev_sdio.c
+dev_mmc.c
+""")
+
+# The set of source files associated with this SConscript file.
+path = [cwd + '/../include' , cwd + '/sdhci/include']
+
+if GetDepend('RT_USING_SDHCI'):
+    src += [os.path.join('sdhci', 'sdhci.c')]
+    src += [os.path.join('sdhci', 'fit-mmc.c')]
+    src += [os.path.join('sdhci', 'sdhci-platform.c')]
+
+group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_SDIO'], CPPPATH = path)
+
+Return('group')