Two question about snd_hda(ALC260) and usb mouse

[Frank Ning]

Hi, I am using  DragonFly 1.8.2-RELESE on my notebook( Compaq Presario B1900 ), the question is:

1. I used snd_hda to driver Realtk ALC260, ALC260 isn't working, dmesg out is:
pcm0: <ATI SB450 High Definition Audio Controller> mem 0xc0500000-0xc0503fff irq 9 at device 20.2 on pci0
pcm0: no softpcm support available
pcm0: <HDA Codec: Realtek ALC260>
pcm0: <HDA Driver Revision: 20061009_0031>

2.I want to use usb mouse, I find ums0 in dmesg, but when I used in xorg, but there is no responsed,dmesg out is:
ohci0: <ATI SB400 USB Controller> mem 0xc0504000-0xc0504fff irq 5 at device 19.0 on pci0
usb0: OHCI version 1.0, legacy support
usb0: <ATI SB400 USB Controller> on ohci0
usb0: USB revision 1.0
uhub0: 4 ports with 4 removable, self powered
ohci1: <ATI SB400 USB Controller> mem 0xc0505000-0xc0505fff irq 5 at device 19.1 on pci0
usb1: OHCI version 1.0, legacy support
usb1: <ATI SB400 USB Controller> on ohci1
usb1: USB revision 1.0
uhub1: 4 ports with 4 removable, self powered
ums0: vendor 0x055d product 0x1030, rev 1.00/0.04, addr 2, iclass 3/1
ums0: 3 buttons and Z dir.
pci0: <USB controller> at 19.2 irq 5
pci0: <unknown card> (vendor=0x1002, dev=0x4372) at 20.0

then i use hexdump /dev/ums0, there is nothing!

Some body can help me, thanks