I spoke too soon... what "works" now is that I can see all of the devices
again... but I'm still having the problem where the machined screeches to
a halt when the javax-usb library comes up.
After my code walks through the devices and dumps their state to the screen,
here are the threads running.
Java HotSpot(TM) Client VM[10.1.0.167:8000]
Thread [main] (Suspended)
Series6600.init() line: 242
Series6600.main(String[]) line: 210
Thread [RunnableManager 2 Thread 1] (Running)
Thread [javax.usb Linux implementation Topology Poller] (Running)
Thread [UsbDeviceImp <ffff:ffff> RunnableManager Thread 1] (Running)
Thread [UsbDeviceImp <0000:0000> RunnableManager Thread 1] (Running)
Thread [LinuxDeviceProxy /proc/bus/usb/001/001] (Running)
Thread [UsbDeviceImp <0000:0000> RunnableManager Thread 1] (Running)
Thread [LinuxDeviceProxy /proc/bus/usb/002/001] (Running)
Thread [UsbDeviceImp <0bed:1100> RunnableManager Thread 1] (Running)
Thread [LinuxDeviceProxy /proc/bus/usb/002/002] (Running)
Thread [UsbDeviceImp <0596:0100> RunnableManager Thread 1] (Running)
Thread [LinuxDeviceProxy /proc/bus/usb/002/003] (Running)
Thread [UsbDeviceImp <0000:0000> RunnableManager Thread 1] (Running)
Thread [LinuxDeviceProxy /proc/bus/usb/003/001] (Running)
Thread [UsbDeviceImp <0000:0000> RunnableManager Thread 1] (Running)
Thread [LinuxDeviceProxy /proc/bus/usb/004/001] (Running)
Thread [UsbDeviceImp <088c:2030> RunnableManager Thread 1] (Running)
Thread [LinuxDeviceProxy /proc/bus/usb/004/002] (Running)
At this point, I haven't even opened any endpoints or pipes, but the
system is slow to the point of near-unresponsiveness.
I'm running a 2.6.6 kernel - would this cause any problems? I'm going to
move over to Fedora Core 7 and see if that helps.
Here is the dump from my code:
Initializing usb services
Getting root hub
Root hub: javax.usb OS-independent Reference Implementation Virtual Root UsbHub
has 4 ports.
Finding USB devices...
Attached devices: 4
Device: Linux 2.6.9-1.667 ehci_hcd EHCI Host Controller: 0000:00:03.3
Attached devices: 0
Device: Linux 2.6.9-1.667 ohci_hcd OHCI Host Controller: 0000:00:03.0
Attached devices: 2
Device: Silicon Labs MEI (TM) Cashflow-SC Bill/Voucher Acceptor:
18781501820
bcdDevice: 256
bcdUSB: 272
idProduct: 4352
idVendor: 3053
bDescriptorType: 1
bDeviceClass: 0
bDeviceProtocol: 0
bDeviceSubClass: 0
bLength: 18
bMaxPacketSize0: 64
iManufacturer: 1
iProduct: 2
iSerialNumber: 3
1 configurations.
Confifuration: null is active.
- wTotalLength: 32
- bConfigurationValue: 1
- bDescriptorType: 2
- bLength: 9
- bmAttributes: -128
- bMaxPower: 50
- iConfiguration: 0
- bNumInterfaces: 1
Interface
(Active setting: 0)
-- bInterfaceClass: -1
-- bDescriptorType: 4
-- bInterfaceNumber: 0
-- bInterfaceProtocol: 0
-- bInterfaceSubClass: 0
** Endpoints **
[-127] Direction: -128
[-127] Type: 2
[-127] wMaxPacketSize: 64
[-127] bDescriptorType: 5
[-127] bEndpointAddress: -127
[-127] bInterval: 0
[-127] bLength: 7
[-127] bmAttributes: 2
[-127] pipe active: true
[-127] pipe open: false
[1] Direction: 0
[1] Type: 2
[1] wMaxPacketSize: 64
[1] bDescriptorType: 5
[1] bEndpointAddress: 1
[1] bInterval: 0
[1] bLength: 7
[1] bmAttributes: 2
[1] pipe active: true
[1] pipe open: false
Device: 3M 3M MicroTouch USB controller: null
bcdDevice: 1
bcdUSB: 272
idProduct: 256
idVendor: 1430
bDescriptorType: 1
bDeviceClass: 0
bDeviceProtocol: 0
bDeviceSubClass: 0
bLength: 18
bMaxPacketSize0: 8
iManufacturer: 3
iProduct: 1
iSerialNumber: 0
1 configurations.
Confifuration: null is active.
- wTotalLength: 34
- bConfigurationValue: 1
- bDescriptorType: 2
- bLength: 9
- bmAttributes: -96
- bMaxPower: 25
- iConfiguration: 0
- bNumInterfaces: 1
Interface
(Active setting: 0)
-- bInterfaceClass: 3
-- bDescriptorType: 4
-- bInterfaceNumber: 0
-- bInterfaceProtocol: 0
-- bInterfaceSubClass: 0
** Endpoints **
[-127] Direction: -128
[-127] Type: 3
[-127] wMaxPacketSize: 8
[-127] bDescriptorType: 5
[-127] bEndpointAddress: -127
[-127] bInterval: 10
[-127] bLength: 7
[-127] bmAttributes: 3
[-127] pipe active: true
[-127] pipe open: false
Device: Linux 2.6.9-1.667 ohci_hcd OHCI Host Controller: 0000:00:03.1
Attached devices: 0
Device: Linux 2.6.9-1.667 ohci_hcd OHCI Host Controller: 0000:00:03.2
Attached devices: 1
Device: Swecoin AB TTP 2030: null
bcdDevice: 260
bcdUSB: 256
idProduct: 8240
idVendor: 2188
bDescriptorType: 1
bDeviceClass: 7
bDeviceProtocol: 2
bDeviceSubClass: 1
bLength: 18
bMaxPacketSize0: 64
iManufacturer: 1
iProduct: 2
iSerialNumber: 0
1 configurations.
Confifuration: null is active.
- wTotalLength: 32
- bConfigurationValue: 1
- bDescriptorType: 2
- bLength: 9
- bmAttributes: 64
- bMaxPower: 0
- iConfiguration: 0
- bNumInterfaces: 1
Interface
(Active setting: 0)
-- bInterfaceClass: 7
-- bDescriptorType: 4
-- bInterfaceNumber: 0
-- bInterfaceProtocol: 2
-- bInterfaceSubClass: 1
** Endpoints **
[1] Direction: 0
[1] Type: 2
[1] wMaxPacketSize: 64
[1] bDescriptorType: 5
[1] bEndpointAddress: 1
[1] bInterval: 0
[1] bLength: 7
[1] bmAttributes: 2
[1] pipe active: true
[1] pipe open: false
[-126] Direction: -128
[-126] Type: 2
[-126] wMaxPacketSize: 64
[-126] bDescriptorType: 5
[-126] bEndpointAddress: -126
[-126] bInterval: 0
[-126] bLength: 7
[-126] bmAttributes: 2
[-126] pipe active: true
[-126] pipe open: false
-----Original Message-----
From: David Hooker [mailto:[EMAIL PROTECTED]
Sent: Monday, July 16, 2007 3:49 PM
To: [EMAIL PROTECTED]; 'Dan Streetman'
Cc: javax-usb-devel@lists.sourceforge.net
Subject: RE: [javax-usb-devel] Help - javax-usb very slow
Seems my usbfs was mounted without write permissions. I remounted 0666 and it
seems to work now.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of David
Hooker
Sent: Monday, July 16, 2007 12:16 PM
To: 'Dan Streetman'
Cc: javax-usb-devel@lists.sourceforge.net
Subject: Re: [javax-usb-devel] Help - javax-usb very slow
No, my code only creates one thread, which sleeps 10 seconds then attempts to
send a packet to a USB device.
My code before that looks like this:
inEndpoint = DeviceManager.getInstance().getInEndpoint("3053/4352");
outEndpoint =
DeviceManager.getInstance().getOutEndpoint("3053/4352");
inEndpoint.getUsbInterface().claim();
inPipe = inEndpoint.getUsbPipe();
inPipe.open();
inPipe.addUsbPipeListener(this);
outPipe = outEndpoint.getUsbPipe();
outPipe.open();
The "DeviceManager" is a class I wrote which recursively goes through the USB
hierarchy of hub/devices, creating a hashmap of product/vendor ids to
configured endpoints. Oh, and it prints out the entire tree and descriptors
for everything.
Once the pipes are open, I see in the debugger a number of threads, all with
names which appear to be set within the javax-usb library.
I'd post those names, but now, for some reason, my searching for usb devices
can't find any:
Initializing usb services
Getting root hub
Root hub: javax.usb OS-independent Reference Implementation Virtual Root
UsbHub has 1 ports.
Finding USB devices...
Attached devices: 0
I don't know why it can no longer find ANY USB devices. I did download and
compile the "libusb" library, and ran the tests associated with it - and it
finds all of the USB devices just fine. I rebooted, thinking that it somehow
masked them from the javax-usb library, but even after a reboot the java code
can't see anything. I didn't "install" the library - just compiled it and ran
the tests.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Dan
Streetman
Sent: Monday, July 16, 2007 11:22 AM
To: [EMAIL PROTECTED]
Cc: javax-usb-devel@lists.sourceforge.net
Subject: Re: [javax-usb-devel] Help - javax-usb very slow
Maybe if you posted your code we could help more. Your description is
pretty vague, especially of what you are doing when the problem
happens. Maybe your code is creating all the threads?
On 7/15/07, David Hooker <[EMAIL PROTECTED]> wrote:
>
> So, I spent all day downloading the javax.usb packages, compiling them...
> then writing code to use them. Now, when I run my program, the machine
> grinds to a halt! Here's all that I've learned, and if someone could tell me
> what's going on that would be fantastic!
>
> Latest released javax.usb code (1.0.1), compiled today on this machine.
>
> OS: Linux localhost.localdomain 2.6.9-1.667 #1 Thu Aug 11 16:18:41 CDT 2005
> i686 athlon i386 GNU/Linux
> (Fedora Core 3 - I think)
>
> gcc version 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)
>
> java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
> Java HotSpot(TM) Client VM (build 1.5.0-b64, mixed mode)
>
> So... my code simply goes through the usb topology, recursively printing out
> all the information for all the objects it sees. That works fine. When it
> sees a UsbInterface that is configured/active, it gets the in/out
> UsbEndpoints and puts them in Hashtables, with the devices vendor/product ids
> (concatenated to a string) as the key. That way, I can just ask the
> hashtable for the "in" endpoint for device "123/456". Which works. Once it
> does that, it get's a particular device, claims the interface, get's the
> output pipe, and sends a string. Then it quits.
>
> What seems to happen is that once I've walked through the device tree, the
> whole computer slows to a crawl until the program ends. Hooking up a remote
> debugger (Eclipse) shows a bunch of threads fired up... and the debugger even
> has trouble getting the jvm to respond because the machine is so hosed.
>
> I tried fiddling with the settings in javax.usb.properties - setting the
> polling to true, then false, chaning the poll time... nothing affects this
> weird behvior. JNI tracing doesn't seem to do anything, either. (I've
> searched my whole machine for any conflicting libraries, jar files, and
> property files - it's clean).
>
> Any ideas???
>
> Thanks in advance!!!
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