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authorimp <imp@FreeBSD.org>2005-09-08 17:16:23 +0000
committerimp <imp@FreeBSD.org>2005-09-08 17:16:23 +0000
commit1ca9efc182d9eab0c0e4ef93735db75902f2a464 (patch)
treeef5b58d92de6fe74dc1ffecab7abd35ac54f07ad /sys/dev/ed
parenta67de82883f6a2e4adcde03a484cac53ac63f91b (diff)
downloadFreeBSD-src-1ca9efc182d9eab0c0e4ef93735db75902f2a464.zip
FreeBSD-src-1ca9efc182d9eab0c0e4ef93735db75902f2a464.tar.gz
Add note about what ED_DEFAULT_MAC_OFFSET applies to
Diffstat (limited to 'sys/dev/ed')
-rw-r--r--sys/dev/ed/if_ed_pccard.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/dev/ed/if_ed_pccard.c b/sys/dev/ed/if_ed_pccard.c
index 0489cec..c941dd5 100644
--- a/sys/dev/ed/if_ed_pccard.c
+++ b/sys/dev/ed/if_ed_pccard.c
@@ -76,6 +76,10 @@ MODULE_DEPEND(ed, ether, 1, 1, 1);
* of them store the MAC address at a fixed offset into attribute
* memory, without any reference at all appearing in the CIS. And
* nearly all of those store it at the same location.
+ *
+ * This applies only to the older, NE-2000 compatbile cards. The newer
+ * cards based on the AX88x90 or DL100XX chipsets have a specific place
+ * to look for MAC information.
*/
#define ED_DEFAULT_MAC_OFFSET 0xff0
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