From eeea340b17302c3b82d29a7d2f50238cd1b24af4 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jeff@garzik.org>
Date: Sat, 27 Nov 2010 03:45:47 -0500
Subject: [PATCH] sha256_via: add further comments on byte-swapping work

---
 sha256_via.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sha256_via.c b/sha256_via.c
index c03495b1..8becfd7d 100644
--- a/sha256_via.c
+++ b/sha256_via.c
@@ -42,6 +42,8 @@ bool scanhash_via(unsigned char *midstate, const unsigned char *data_in,
 
 	/* bitcoin gives us big endian input, but via wants LE,
 	 * so we reverse the swapping bitcoin has already done (extra work)
+	 * in order to permit the hardware to swap everything
+	 * back to BE again (extra work).
 	 */
 	for (i = 0; i < 128/4; i++) {
 		uint32_t *data32 = (uint32_t *) data;