diff options
Diffstat (limited to 'usr/src/uts/common/io/usb/usba/parser.c')
| -rw-r--r-- | usr/src/uts/common/io/usb/usba/parser.c | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/usr/src/uts/common/io/usb/usba/parser.c b/usr/src/uts/common/io/usb/usba/parser.c index e6d1893ebe..f4e0af84e5 100644 --- a/usr/src/uts/common/io/usb/usba/parser.c +++ b/usr/src/uts/common/io/usb/usba/parser.c @@ -2,9 +2,8 @@ * CDDL HEADER START * * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. @@ -20,7 +19,7 @@ * CDDL HEADER END */ /* - * Copyright 2005 Sun Microsystems, Inc. All rights reserved. + * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -297,6 +296,39 @@ usba_parse_cfg_pwr_descr( size_t +usb_parse_ia_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */ + size_t buflen, + size_t first_if, + usb_ia_descr_t *ret_descr, + size_t ret_buf_len) +{ + uchar_t *bufend = buf + buflen; + + if ((buf == NULL) || (ret_descr == NULL)) { + + return (USB_PARSE_ERROR); + } + + while (buf + USB_IA_DESCR_SIZE <= bufend) { + if ((buf[1] == USB_DESCR_TYPE_IA) && + (buf[2] == first_if)) { + + return (usb_parse_data("cccccccc", + buf, bufend - buf, ret_descr, ret_buf_len)); + } + + /* + * Check for a bad buffer. + * If buf[0] is 0, then this will be an infinite loop + */ + INCREMENT_BUF(buf); + } + + return (USB_PARSE_ERROR); +} + + +size_t usb_parse_if_descr(uchar_t *buf, /* from GET_DESCRIPTOR(CONFIGURATION) */ size_t buflen, uint_t if_number, |