Platform:
- Red Hat Linux, kernel 2.6.15.7
Java JDK:
1.6.0_03
Javax.usb version:
1.0.1
I got everything set up so that I have the three jars in /usr/<jdk>/jre/lib/ext
- jsr80.jar
- jsr80_ri.jar
- jsr80_linux.jar
Native libraries in /usr/lib
- libJavax.so
I am running from NetBeans 5.5.1
I am running the example program from the "javax-usrb-example_1.0.0.zip" set.
The example app is "FindUsbDevice.java"
When I run "cat /proc/bus/usb/devices" I see the following (sorry for the
chunck of data below):
T: Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.15.7-gemOS-v009 uhci_hcd
S: Product=UHCI Host Controller
S: SerialNumber=0000:00:1d.3
C:* #Ifs= 1 Cfg#= 1 Atr=c0 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=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.15.7-gemOS-v009 uhci_hcd
S: Product=UHCI Host Controller
S: SerialNumber=0000:00:1d.2
C:* #Ifs= 1 Cfg#= 1 Atr=c0 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=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.15.7-gemOS-v009 uhci_hcd
S: Product=UHCI Host Controller
S: SerialNumber=0000:00:1d.1
C:* #Ifs= 1 Cfg#= 1 Atr=c0 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
################################################
# my comment - Here is device I plugged into my computer
# but is not recognized by javax.usb
# The manufacturer is NDI
################################################
T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0403 ProdID=da71 Rev= 4.00
S: Manufacturer=NDI
S: Product=NDI Polaris Spectra SCU
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr= 40mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=ftdi_sio
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.15.7-gemOS-v009 uhci_hcd
S: Product=UHCI Host Controller
S: SerialNumber=0000:00:1d.0
C:* #Ifs= 1 Cfg#= 1 Atr=c0 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
################################################
# my comment - Here is what the FindUsbDevice.java reports
################################################
Found 1 devices total.
Found 1 devices with vendor ID 0xffff product ID 0xffff
Found 1 devices with device class 0x09
Found 0 devices with manufacturer string "This probably won't match anything"
I read that part of the necessary Linux setup is to ensure that I have
permissions for the usb file system (usbfs). Currently, my machine reports
that it only has "root" privileges. I understand that I need to do this if I
want to "claim" a device and communicate with it, etc. However, for this test
case I thought this example program should work because it is only doing a
query on the bus topology and reporting what it found. So, I figured it woud
show, not only the "root" hub as the program is doing (although the vendor and
product IDs don't match what was reported by /proc/bus/usb/devices), but also
the the device I plugged in.
Any suggestions would be appreciated.
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