following alan's tip, i have run my program w/no code changes and i dont see any claim errors, weird!
but i do have a question; consider i am sending via interrupt xfers 2 - 8 byte xfers to my widget
and i read back 2 - 8 byte responses. the dmesg from running my program twice looks like, ...
[ 267.640170] usb 3-2: new low speed USB device using uhci_hcd and address 2
[ 267.808286] usb 3-2: New USB device found, idVendor=1808, idProduct=5555
[ 267.808302] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 267.808314] usb 3-2: Product: USB to OBD-2
[ 267.808323] usb 3-2: Manufacturer: Multiplex Engineering
[ 267.808666] usb 3-2: configuration #1 chosen from 1 choice
[ 272.910640] usb 3-2: opened by process 1915: lsusb
[ 272.910881] usb 3-2: opened by process 1915: lsusb
[ 287.653667] usb 3-2: opened by process 1916: obdscan
[ 287.653725] usb 3-2: usbdev_ioctl: GETDRIVER
[ 287.654007] usb 3-2: usbdev_ioctl: IOCTL
[ 287.655850] usb 3-2: usbdev_ioctl: CLAIMINTERFACE
[ 287.657241] usb 3-2: usbdev_ioctl: SUBMITURB
[ 287.657252] usb 3-2: interrupt urb
[ 287.657265] usb 3-2: direction=OUT
[ 287.657271] usb 3-2: userurb=08c74150
[ 287.657276] usb 3-2: transfer_buffer_length=8
[ 287.657282] usb 3-2: actual_length=0
[ 287.657286] usb 3-2: data: e4 80 05 61 6a f1 01 00
[ 287.664205] usb 3-2: urb complete
[ 287.664214] usb 3-2: direction=OUT
[ 287.664219] usb 3-2: userurb=08c74150
[ 287.664223] usb 3-2: transfer_buffer_length=8
[ 287.664227] usb 3-2: actual_length=8
[ 287.664231] usb 3-2: data: e4 80 05 61 6a f1 01 00
[ 287.665359] usb 3-2: usbdev_ioctl: REAPURBDELAY
[ 287.665410] usb 3-2: usbdev_ioctl: SUBMITURB
[ 287.665423] usb 3-2: interrupt urb
[ 287.665435] usb 3-2: direction=OUT
[ 287.665443] usb 3-2: userurb=08c74150
[ 287.665451] usb 3-2: transfer_buffer_length=8
[ 287.665459] usb 3-2: actual_length=0
[ 287.665466] usb 3-2: data: 00 00 00 00 00 00 42 00
[ 287.672238] usb 3-2: urb complete
[ 287.672251] usb 3-2: direction=OUT
[ 287.672260] usb 3-2: userurb=08c74150
[ 287.672269] usb 3-2: transfer_buffer_length=8
[ 287.672277] usb 3-2: actual_length=8
[ 287.672284] usb 3-2: data: 00 00 00 00 00 00 42 00
[ 287.672399] usb 3-2: usbdev_ioctl: REAPURBDELAY
[ 287.672436] usb 3-2: usbdev_ioctl: SUBMITURB
[ 287.672444] usb 3-2: interrupt urb
[ 287.672453] usb 3-2: direction=IN
[ 287.672459] usb 3-2: userurb=08c74150
[ 287.672465] usb 3-2: transfer_buffer_length=8
[ 287.672471] usb 3-2: actual_length=0
[ 287.672476] usb 3-2: data: 00 00 00 00 00 00 42 00
[ 287.816239] usb 3-2: urb complete
[ 287.816254] usb 3-2: direction=IN
[ 287.816264] usb 3-2: userurb=08c74150
[ 287.816272] usb 3-2: transfer_buffer_length=8
[ 287.816281] usb 3-2: actual_length=8
[ 287.816288] usb 3-2: data: 40 84 41 6b 10 41 00 bf
[ 287.816390] usb 3-2: usbdev_ioctl: REAPURBDELAY
[ 287.816436] usb 3-2: usbdev_ioctl: SUBMITURB
[ 287.816447] usb 3-2: interrupt urb
[ 287.816458] usb 3-2: direction=IN
[ 287.816466] usb 3-2: userurb=08c74150
[ 287.816474] usb 3-2: transfer_buffer_length=8
[ 287.816483] usb 3-2: actual_length=0
[ 287.816490] usb 3-2: data: 40 84 41 6b 10 41 00 bf
[ 287.824237] usb 3-2: urb complete
[ 287.824249] usb 3-2: direction=IN
[ 287.824259] usb 3-2: userurb=08c74150
[ 287.824267] usb 3-2: transfer_buffer_length=8
[ 287.824276] usb 3-2: actual_length=8
[ 287.824283] usb 3-2: data: 9f b9 90 05 00 2d 00 00
[ 287.824381] usb 3-2: usbdev_ioctl: REAPURBDELAY
[ 287.824536] usb 3-2: usbdev_ioctl: RELEASEINTERFACE
[ 300.214387] usb 3-2: opened by process 1920: obdscan
my question is, seeing the regular pattern of 'actual_length=0', i am guessing that is normal?
thx, jackc...
--
jack craig
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IM: jackcraigaptos (AIM)
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