Finally I found the issue. Indeed the problem was the firmware, I was setting up the isochronous endpoint with handshake. I have done some raw tests and it feels like it is working. Thank you all.
2013/1/20 Wander Lairson Costa <wander.lair...@gmail.com>: > 2013/1/20 Xiaofan Chen <xiaof...@gmail.com>: >> On Fri, Jan 11, 2013 at 6:37 PM, Wander Lairson Costa >> <wander.lair...@gmail.com> wrote: >>>>> [1] https://github.com/walac/isochronous >>>>> >>>>> [2] https://github.com/walac/bmfw >>>> >>>> Can your test your firmware against the BenchmarkCon host software >>>> from libusbdotnet? Under Linux, libusbdotnet will use libusb-1.0 >>>> API so it indirectly tests the libusbx (assume you use libusbx >>>> as the libusb-1.0 API provider). >>> >>> I guess so. Probably I will have to change the code to match my >>> endpoints (they are in alternate setting 2). I will test and report >>> the results. >> >> I just built your test firmware with a PIC18F87J50 USB PIM >> with Microchip MPLAB 8.89 and MPLAB C18 3.44. Then I tested >> it with libusbK 3.0.5.16 under Windows with libusbK.sys >> driver, it seems to work. But this test does not involve >> libusbx since libusbx does not suppport isoc transfer under >> Windows as of now. >> >> C:\libusbK-dev-kit>klist >> >> Loading USB ID's maintained by Stephen J. Gowdy <linux.usb....@gmail.com>.. >> >> 1. Benchmark Device (Microchip Technology, Inc.) [Connected] >> Service : libusbK >> ClassGUID : {ECFB0CFD-74C4-4F52-BBF7-343461CD72AC} >> DeviceID : USB\VID_04D8&PID_FA2E\LUSBW1 >> DeviceInterfaceGUID : {77360352-3618-7749-A71D-1BB42062794E} >> SymbolicLink : >> \\?\usb#vid_04d8&pid_fa2e#lusbw1#{77360352-3618-7749- >> a71d-1bb42062794e} >> DevicePath : >> \\?\usb#vid_04d8&pid_fa2e#lusbw1#{77360352-3618-7749- >> a71d-1bb42062794e} >> SerialNumber : LUSBW1 >> BusNumber : 0 >> DeviceAddress : 2 >> >> Select device (1-1) :1 >> >> Loading driver api.. >> Getting descriptors.. >> >> -Device: >> bLength :18 >> bDescriptorType :0x01 >> bcdUSB :0x0200 >> bDeviceClass :0x00 (Defined at Interface level) >> bDeviceSubClass :0x00 >> bDeviceProtocol :0x00 >> bMaxPacketSize0 :8 >> idVendor :0x04D8 (Microchip Technology, Inc.) >> idProduct :0xFA2E >> bcdDevice :0x0001 >> iManufacturer :1 (Travis Robinson) >> iProduct :2 (Benchmark Device) >> iSerialNumber :3 (LUSBW1) >> bNumConfigurations :1 >> !End Device >> -Configuration: >> bLength :9 >> bDescriptorType :0x02 >> wTotalLength :78 >> bNumInterfaces :1 >> bConfigurationValue :0x01 >> iConfiguration :0 >> bmAttributes :0xC0 >> MaxPower :50 (100ma) >> -Interface: >> bLength :9 >> bDescriptorType :0x04 >> bInterfaceNumber :0x00 >> bAlternateSetting :0x00 >> bNumEndpoints :2 >> bInterfaceClass :0x00 (Defined at Interface level) >> bInterfaceSubClass :0x00 >> bInterfaceProtocol :0x00 >> iInterface :0 >> -Endpoint: >> bLength :7 >> bDescriptorType :0x05 >> bEndpointAddress :0x01 >> bmAttributes :0x02 (Bulk) >> wMaxPacketSize :16 >> bInterval :0x00 >> !End Endpoint >> -Endpoint: >> bLength :7 >> bDescriptorType :0x05 >> bEndpointAddress :0x81 >> bmAttributes :0x02 (Bulk) >> wMaxPacketSize :16 >> bInterval :0x00 >> !End Endpoint >> !End Interface >> -Interface: >> bLength :9 >> bDescriptorType :0x04 >> bInterfaceNumber :0x00 >> bAlternateSetting :0x01 >> bNumEndpoints :2 >> bInterfaceClass :0x00 (Defined at Interface level) >> bInterfaceSubClass :0x00 >> bInterfaceProtocol :0x00 >> iInterface :0 >> -Endpoint: >> bLength :7 >> bDescriptorType :0x05 >> bEndpointAddress :0x01 >> bmAttributes :0x03 (Interrupt) >> wMaxPacketSize :16 >> bInterval :0x01 >> !End Endpoint >> -Endpoint: >> bLength :7 >> bDescriptorType :0x05 >> bEndpointAddress :0x81 >> bmAttributes :0x03 (Interrupt) >> wMaxPacketSize :16 >> bInterval :0x01 >> !End Endpoint >> !End Interface >> -Interface: >> bLength :9 >> bDescriptorType :0x04 >> bInterfaceNumber :0x00 >> bAlternateSetting :0x02 >> bNumEndpoints :2 >> bInterfaceClass :0x00 (Defined at Interface level) >> bInterfaceSubClass :0x00 >> bInterfaceProtocol :0x00 >> iInterface :0 >> -Endpoint: >> bLength :7 >> bDescriptorType :0x05 >> bEndpointAddress :0x01 >> bmAttributes :0x05 (Isochronous, Asynchronous, Data Endpoint) >> wMaxPacketSize :32 >> bInterval :0x01 >> !End Endpoint >> -Endpoint: >> bLength :7 >> bDescriptorType :0x05 >> bEndpointAddress :0x81 >> bmAttributes :0x05 (Isochronous, Asynchronous, Data Endpoint) >> wMaxPacketSize :32 >> bInterval :0x01 >> !End Endpoint >> !End Interface >> !End Configuration >> >> C:\libusbK-dev-kit>kbench list mode=async buffercount=2 verify >> device-count=1 >> 1. Benchmark Device (USB\VID_04D8&PID_FA2E\LUSBW1) [libusbK] >> Select device (1-1) :1 >> >> opened Benchmark Device (USB\VID_04D8&PID_FA2E\LUSBW1).. >> Loop Test Information >> Driver : libusbK >> Vid / Pid : 04D8h / FA2Eh >> DevicePath : >> \\?\usb#vid_04d8&pid_fa2e#lusbw1#{77360352-3618-7749-a >> 71d-1bb42062794e} >> Device Speed : Low/Full >> Interface # : 00h >> Alt Interface # : 00h >> Num Endpoints : 2 >> Priority : 0 >> Read Size : 4096 >> Write Size : 4096 >> Buffer Count : 2 >> Display Refresh : 1000 (ms) >> Transfer Timeout: 5000 (ms) >> Retry Count : 0 >> Verify Data : On >> >> Bulk Read (Ep81h) max packet size: 16 >> Bulk Write (Ep01h) max packet size: 16 >> >> While the test is running: >> Press 'Q' to quit >> Press 'T' for test details >> Press 'I' for status information >> Press 'R' to reset averages >> >> Press 'Q' to exit, any other key to begin.. >> Loop data synchronized. Offset=32 Byte=00h Reliability=99.2%. >> Avg. Bytes/s: 172176.99 Transfers: 38 Bytes/s: 172176.99 >> Avg. Bytes/s: 172191.28 Transfers: 80 Bytes/s: 172204.20 >> Avg. Bytes/s: 172714.43 Transfers: 123 Bytes/s: 173696.25 >> Avg. Bytes/s: 172628.35 Transfers: 165 Bytes/s: 172376.75 >> Avg. Bytes/s: 172017.04 Transfers: 207 Bytes/s: 169656.80 >> Avg. Bytes/s: 172287.65 Transfers: 248 Bytes/s: 173667.01 >> Avg. Bytes/s: 172494.36 Transfers: 291 Bytes/s: 173696.25 >> Avg. Bytes/s: 172648.16 Transfers: 334 Bytes/s: 173696.25 >> Avg. Bytes/s: 172598.45 Transfers: 376 Bytes/s: 172204.20 >> Avg. Bytes/s: 172576.15 Transfers: 418 Bytes/s: 172376.75 >> Avg. Bytes/s: 172305.44 Transfers: 460 Bytes/s: 169656.80 >> Avg. Bytes/s: 172184.59 Transfers: 501 Bytes/s: 170840.28 >> Avg. Bytes/s: 172303.12 Transfers: 544 Bytes/s: 173696.25 >> stopped Ep81h thread. ExitCode=0 >> stopped Ep01h thread. ExitCode=0 >> Loop Test Information >> Driver : libusbK >> Vid / Pid : 04D8h / FA2Eh >> DevicePath : >> \\?\usb#vid_04d8&pid_fa2e#lusbw1#{77360352-3618-7749-a >> 71d-1bb42062794e} >> Device Speed : Low/Full >> Interface # : 00h >> Alt Interface # : 00h >> Num Endpoints : 2 >> Priority : 0 >> Read Size : 4096 >> Write Size : 4096 >> Buffer Count : 2 >> Display Refresh : 1000 (ms) >> Transfer Timeout: 5000 (ms) >> Retry Count : 0 >> Verify Data : On >> >> Bulk Read (Ep81h) max packet size: 16 >> Total Bytes : 2228224 >> Total Transfers : 544 >> Avg. Bytes/sec : 172303.12 >> Elapsed Time : 12.93 seconds >> >> Bulk Write (Ep01h) max packet size: 16 >> Total Bytes : 2228224 >> Total Transfers : 544 >> Avg. Bytes/sec : 172303.12 >> Elapsed Time : 12.93 seconds >> >> Press any key to exit.. >> > > Actually, the tests were done with bulk transfer, which works just > fine. Isochronous endpoints are in the alternate setting 2. If you > pass the argument 'altf=2' to the benchmark app, the error should > occur. > > In my tests, it didn't work: > > ./Bm-winusb.exe vid=0x4d8 pid=0xfa2e altf=2 > LibUsbDotNet USB Benchmark v2.2.9.110 > Copyright (c) 2010 Travis Robinson. <libusbdot...@gmail.com> > website: http://sourceforge.net/projects/libusbdotnet > Benchmark device 04D8:FA2E opened.. > Loop Test Information > Vid / Pid : 04D8h / FA2Eh > Interface # : 00h > Alt Interface # : 02h > Priority : Normal > Buffer Size : 4096 > Buffer Count : 1 > Display Refresh : 1000 (ms) > Transfer Timeout: 5000 (ms) > Retry Count : 0 > Verify Data : Off > > Isochronous Read (Ep81h) max packet size: 32 > Isochronous Write (Ep01h) max packet size: 32 > > While the test is running: > Press 'Q' to quit > Press 'T' for test details > Press 'I' for status information > Press 'R' to reset averages > > Press 'Q' to exit, any other key to begin.. > > wrn:Zero-length transfer on Ep81h expected 4096. > wrn:Zero-length transfer on Ep01h expected 4096. > stopped Ep81h thread. > stopped Ep01h thread. > Loop Test Information > Vid / Pid : 04D8h / FA2Eh > Interface # : 00h > Alt Interface # : 02h > Priority : Normal > Buffer Size : 4096 > Buffer Count : 1 > Display Refresh : 1000 (ms) > Transfer Timeout: 5000 (ms) > Retry Count : 0 > Verify Data : Off > > Isochronous Read (Ep81h) max packet size: 32 > Isochronous Write (Ep01h) max packet size: 32 > Press any key to exit.. > > > -- > Best Regards, > Wander Lairson Costa -- Best Regards, Wander Lairson Costa ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. 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