Greetings! I would like to know the meaning of "S3C2410_UDC_INDEX_ ## x" in the following: #define S3C2410_UDC_SETIX(x) \ __raw_writel(S3C2410_UDC_INDEX_ ## x, S3C2410_UDC_INDEX_REG); Source: http://lxr.linux.no/source/include/asm-arm/arch-s3c2410/regs-udc.h Thanks, Shakthi -- Shakthi Kannan http://www.shakthimaan.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/