On Tue, Jan 17, 2006 at 10:32:12AM -0800, Brian Stumm wrote:

> I assume thats the MxPS value from /proc/bus/usb/devices??? If so I think its 
> 5 for
> mouse and 8 for keyboard.
> 
> T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  3 Spd=1.5 MxCh= 0
> D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
> P:  Vendor=060b ProdID=0541 Rev= 1.01
> C:* #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=100mA
> I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=01 Driver=usbhid
> E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=10ms
> I:  If#= 1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
> E:  Ad=82(I) Atr=03(Int.) MxPS=   5 Ivl=10ms

Wow. I've never seen a maxpacketsize other than a power of two. That
seems like a bug in the device descriptor, that might cause problems
elsewhere in the stack. 

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR


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