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authorGuy Harris <guy@alum.mit.edu>2015-07-05 19:02:51 -0700
committerGuy Harris <guy@alum.mit.edu>2015-07-06 02:04:06 +0000
commit94eb30ab044858581a60c3ecc2a8555b6c426d31 (patch)
tree43502c534eafd93eeffd2d110412dcc7367458a6 /wsutil/frequency-utils.c
parent35399887f41d6c5fb42f18a5ce85553d2522d3a6 (diff)
Add a comment.
Why, oh why, are channel numbers used for 802.11? Change-Id: Ie26987dfeaad2ce0ead0eef72339f966aadeeecd Reviewed-on: https://code.wireshark.org/review/9510 Reviewed-by: Guy Harris <guy@alum.mit.edu>
Diffstat (limited to 'wsutil/frequency-utils.c')
-rw-r--r--wsutil/frequency-utils.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/wsutil/frequency-utils.c b/wsutil/frequency-utils.c
index 2ee6bc9d8c..43cb323864 100644
--- a/wsutil/frequency-utils.c
+++ b/wsutil/frequency-utils.c
@@ -35,7 +35,17 @@ typedef struct freq_cvt_s {
#define FREQ_STEP 5 /* MHz. This seems to be consistent, thankfully */
-/* From "802.11 Wireless Networks: The Definitive Guide", 2nd Ed. by Matthew Gast */
+/*
+ * From "802.11 Wireless Networks: The Definitive Guide", 2nd Ed. by
+ * Matthew Gast.
+ *
+ * XXX - what about Japanese channels 182 through 196, also in the 4.9 GHz
+ * band, with frequencies of 4910 + (chan - 182)*5 MHz?
+ *
+ * XXX - what about the U.S. public safety 4.9 GHz band?
+ *
+ * XXX - what about 802.11ad?
+ */
static freq_cvt_t freq_cvt[] = {
{ 2412, 2472, 1, TRUE }, /* Table 12-1, p 257 */
{ 2484, 2484, 14, TRUE }, /* Table 12-1, p 257 */