Hi Everyone, It appears defines like HWCAP_CRC32 fall under the purview of the kernel. Confer, http://www.google.com/search?q="HWCAP_CRC32" (my apologies if this is not the case). We use getauxval(AT_HWCAP) and HWCAP_CRC32 for runtime detection of processor support for CRC. However, I can't find a similar symbol in the context of the crypto instructions. Confer, http://www.google.com/search?q="HWCAP_CRYPTO". My question is, what are the equivalent defines for Crypto features? Thanks in advance. ***** Below is from a 64-bit LeMaker HiKey (http://www.lemaker.org/product-hikey-index.html). It responds to getauxval(AT_HWCAP) and HWCAP_CRC32. $ cat /proc/cpuinfo Processor : AArch64 Processor rev 3 (aarch64) processor : 0 ... processor : 7 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: AArch64 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 3 Hardware : HiKey Development Board -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html