ata hdd via is not detected

[Anton Korotin]

Hello,

I've recently upgraded my lab box from 5.4 to 6.1-PRERELEASE
and found that my 'photobank' stopped working. 'Photobank'
is a box containing IDE hard disk and various card readers inside
and usb interface outside.

When I plug it in, nothing appears on the console, 
and 'usbdevs -odv' shows:

delta# usbdevs -odv
Controller /dev/usb0:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00, device uhub0
 port 1 addr 2: full speed, power 96 mA, config 1, DCB201(0x223a), DCB(0x0424), rev 2.23
 port 2 powered
Controller /dev/usb1:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00, device uhub1
 port 1 powered
 port 2 powered
delta# 

But on plugging out the following message appears on colsole:

(null): at uhub0 port 1 (addr 3) disconnected

5.4 detected the disks and cardreaders with a umass(4),
6.1-PRERELEASE doesn't.

What do I have to do to clarify the situation?
Should I make a pr? 
Or something changed that I couldn't see in UPDATING?

-- 
Anton