Messages in this thread | | | Date | Fri, 15 Aug 2003 10:17:53 -0700 | From | Paul Dickson <> | Subject | USB: full-speed hides low-speed devices |
| |
I have the USB devices listed below. The hub is built into the keyboard. I have the USB mouse and a storage device both connected into the keyboard.
I can access the hard drive for a few short bursts, like ls, and the mouse continues to work. But when I copy files to/from the device, or do a du --total, the mouse no longer works until I unplug and replug in the mouse.
There is no logged activity until I unplug the mouse.
So it appears that the low-speed mouse disappears once heavy traffic occurs at full-speed. Is this normal?
This notebook only has one physical USB port to connect everything. I don't currently have 2.6 setup on a computer with two USB ports to test with a separate low-speed connection from the mouse to the computer.
This is 2.6.0-test3.
-Paul
[root@violet 08:49:13]# cat /proc/bus/usb/devices
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2 B: Alloc=146/900 us (16%), #Int= 3, #Iso= 0 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.0-test3 uhci-hcd S: Product=UHCI Host Controller S: SerialNumber=0000:00:07.2 C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=255ms T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 3 D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0472 ProdID=0065 Rev= 1.00 S: Manufacturer=Chicony S: Product=Generic USB Hub C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 90mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=255ms T: Bus=01 Lev=02 Prnt=03 Port=00 Cnt=01 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0472 ProdID=0065 Rev= 1.00 S: Manufacturer=Chicony S: Product=PFU-65 USB Keyboard C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=01 Driver=hid E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=24ms T: Bus=01 Lev=02 Prnt=03 Port=01 Cnt=02 Dev#= 14 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=16 #Cfgs= 1 P: Vendor=0d7d ProdID=0310 Rev= 1.00 S: Manufacturer= S: Product=Usb Card Adapter S: SerialNumber=000140000AA7 C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA I: If#= 0 Alt= 0 #EPs= 4 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=255ms E: Ad=01(O) Atr=03(Int.) MxPS= 16 Ivl=255ms T: Bus=01 Lev=02 Prnt=03 Port=02 Cnt=03 Dev#= 12 Spd=1.5 MxCh= 0 D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=1241 ProdID=1111 Rev= 1.00 C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=01 Prot=02 Driver=hid E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=8ms [root@violet 08:50:04]# - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |