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authormrg <mrg@NetBSD.org>2021-06-24 23:01:36 +0000
committermrg <mrg@NetBSD.org>2021-06-24 23:01:36 +0000
commitb53682718599ff524336713bd0f7c44ce080b8d2 (patch)
treefc1ba5d8a53f3a1232836512078bd2bb48e94ce6 /sys/dev/usb
parentaf3d3b8fc0c8f8afd6ce60bd64181e6dc03432e4 (diff)
clarify some comments about what the "send callback" is.
Diffstat (limited to 'sys/dev/usb')
-rw-r--r--sys/dev/usb/usbnet.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/sys/dev/usb/usbnet.h b/sys/dev/usb/usbnet.h
index 62eda6120e6..de4f9d55b14 100644
--- a/sys/dev/usb/usbnet.h
+++ b/sys/dev/usb/usbnet.h
@@ -1,4 +1,4 @@
-/* $NetBSD: usbnet.h,v 1.20 2021/03/01 22:59:52 mrg Exp $ */
+/* $NetBSD: usbnet.h,v 1.21 2021/06/24 23:01:36 mrg Exp $ */
/*
* Copyright (c) 2019 Matthew R. Green
@@ -59,7 +59,7 @@
* - ioctl can use either a device-specific override (useful for special
* cases), but provides a normal handler with callback to handle
* ENETRESET conditions that should be sufficient for most users
- * - start uses usbnet send callback
+ * - start uses usbnet transmit prepare callback (uno_tx_prepare)
* - interface init and stop have helper functions
* - device specific init should use usbnet_init_rx_tx() to open pipes
* to the device and setup the rx/tx chains for use after any device
@@ -73,9 +73,9 @@
* packets, which can use usbnet_enqueue() to provide data to the
* higher layers
* - for tx, usbnet_start (if_start) will pull entries out of the
- * transmit queue and use the send callback for the given mbuf.
- * the usb callback will use usbnet_txeof() for the transmit
- * completion function (internal to usbnet)
+ * transmit queue and use the transmit prepare callback (uno_tx_prepare)
+ * for the given mbuf. the usb callback will use usbnet_txeof() for
+ * the transmit completion function (internal to usbnet)
* - there is special interrupt pipe handling
* - timer/tick:
* - the uno_tick callback will be called once a second if present.