Date: Sun, 14 Feb 2010 19:59:19 +0000 (UTC) From: Andrew Thompson <thompsa@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r203903 - head/sys/dev/usb/serial Message-ID: <201002141959.o1EJxJxQ070762@svn.freebsd.org>
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Author: thompsa Date: Sun Feb 14 19:59:19 2010 New Revision: 203903 URL: http://svn.freebsd.org/changeset/base/203903 Log: Make umodem more tolerant for devices which modem descriptors are misplaced. Reported by: Erick Wales Submitted by: Hans Petter Selasky Modified: head/sys/dev/usb/serial/umodem.c Modified: head/sys/dev/usb/serial/umodem.c ============================================================================== --- head/sys/dev/usb/serial/umodem.c Sun Feb 14 19:59:06 2010 (r203902) +++ head/sys/dev/usb/serial/umodem.c Sun Feb 14 19:59:19 2010 (r203903) @@ -312,11 +312,16 @@ umodem_attach(device_t dev) 0 - 1, UDESCSUB_CDC_UNION, 0 - 1); if ((cud == NULL) || (cud->bLength < sizeof(*cud))) { - device_printf(dev, "no CM or union descriptor\n"); - goto detach; + device_printf(dev, "Missing descriptor. " + "Assuming data interface is next.\n"); + if (sc->sc_ctrl_iface_no == 0xFF) + goto detach; + else + sc->sc_data_iface_no = + sc->sc_ctrl_iface_no + 1; + } else { + sc->sc_data_iface_no = cud->bSlaveInterface[0]; } - - sc->sc_data_iface_no = cud->bSlaveInterface[0]; } else { sc->sc_data_iface_no = cmd->bDataInterface; }
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