[src/trunk]: src/sys/dev/usb adjust some comments to reality.

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d591c3575d80
branches:  trunk
changeset: 964653:d591c3575d80
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sun Aug 11 01:29:45 2019 +0000

description:
adjust some comments to reality.

diffstat:

 sys/dev/usb/usbnet.h |  11 ++++++-----
 1 files changed, 6 insertions(+), 5 deletions(-)

diffs (33 lines):

diff -r 649f8c87e9ed -r d591c3575d80 sys/dev/usb/usbnet.h
--- a/sys/dev/usb/usbnet.h      Sun Aug 11 01:04:33 2019 +0000
+++ b/sys/dev/usb/usbnet.h      Sun Aug 11 01:29:45 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: usbnet.h,v 1.9 2019/08/10 02:17:36 mrg Exp $   */
+/*     $NetBSD: usbnet.h,v 1.10 2019/08/11 01:29:45 mrg Exp $  */
 
 /*
  * Copyright (c) 2019 Matthew R. Green
@@ -100,10 +100,11 @@
 #include <dev/usb/usbdevs.h>
 
 /*
- * Per-transfer data, initialised in usbnet_[rt]x_list_init().
+ * Per-transfer data.
  *
- * Front-end must set uncd_tx_list_cnt and uncd_rx_list_cnt before calling
- * list init, which will allocate the chain arrays, and must be NULL to
+ * Front-end must set un_rx_list_cnt and un_tx_list_cnt before
+ * calling usbnet_attach(), and then call usbnet_rx_tx_init()
+ * which will allocate the chain arrays, and must be NULL to
  * indicate the first call.
  */
 struct usbnet;
@@ -276,7 +277,7 @@
 /*
  * Endpoint / rx/tx chain management:
  *
- * usbnet_attach() allocates rx and tx chains
+ * usbnet_attach() initialises usbnet and allocates rx and tx chains
  * usbnet_init_rx_tx() open pipes, initialises the rx/tx chains for use
  * usbnet_stop() stops pipes, cleans (not frees) rx/tx chains, locked
  *               version assumes un_lock is held