ucom0: could not set data multiplex mode

Hi folks. 
I have an issue with CCU-550 CDMA modem
(http://www.cmotech.com/eproduct6-1.htm) on recent current. 
Every time i am reattaching it i see this error:
ucom0: could not set data multiplex mode 

So in order to work with it i have to reboot after each detache
procedure. The only known workaround for this is to delete the 
"goto bad;" code in /usr/src/sys/dev/usb/umodem.c:

        printf("%s: could not set data multiplex mode\n",
            devname);
        goto bad;

Could someone comment on this?

P.S. Please cc me, becuase i am not subscribe to freebsd-usb or
freebsd-mobile

-- 
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- Best regards, Nikolay Pavlov. <<<-----------------------------------    
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