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Mention that I found protocol info in the Linux driver.

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This commit is contained in:
augustss 2001-01-11 06:33:22 +00:00
parent 7d90b0cb9c
commit d03f7a8f4b
1 changed files with 20 additions and 4 deletions
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24
sys/dev/usb/usscanner.c
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@ -1,7 +1,7 @@
/* $NetBSD: usscanner.c,v 1.2 2001/01/11 06:20:04 augustss Exp $ */
/* $NetBSD: usscanner.c,v 1.3 2001/01/11 06:33:22 augustss Exp $ */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@ -40,6 +40,18 @@
* This driver is partly based on information taken from the Linux driver
* by John Fremlin, Oliver Neukum, and Jeremy Hall.
*/
/*
* Protocol:
* Send raw SCSI command on the bulk-out pipe.
* If output command then
* send further data on the bulk-out pipe
* else if input command then
* read data on the bulk-in pipe
* else
* don't do anything.
* Read status byte on the interrupt pipe (which doesn't seem to be
* an interrupt pipe at all). This operations sometimes times out.
*/
#include <sys/param.h>
#include <sys/systm.h>
@ -447,7 +459,11 @@ usscanner_intr_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
if (sc->sc_state != UAS_STATUS) {
printf("%s: !UAS_STATUS\n", USBDEVNAME(sc->sc_dev));
}
if (sc->sc_status != 0) {
printf("%s: status byte=0x%02x\n", USBDEVNAME(sc->sc_dev), sc->sc_status);
}
#endif
/* XXX what should we do on non-0 status */
sc->sc_state = UAS_IDLE;
@ -556,7 +572,7 @@ usscanner_done(struct usscanner_softc *sc)
Static void
usscanner_sensecmd_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
usbd_status status)
{
struct usscanner_softc *sc = priv;
struct scsipi_xfer *xs = sc->sc_xs;
@ -601,7 +617,7 @@ usscanner_sensecmd_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
Static void
usscanner_cmd_cb(usbd_xfer_handle xfer, usbd_private_handle priv,
usbd_status status)
usbd_status status)
{
struct usscanner_softc *sc = priv;
struct scsipi_xfer *xs = sc->sc_xs;