Here is some of the debug output I collected. Note that it keeps cycling through the autodetect procedure for all of the models of braille display that have USB support.
Jun 9 10:43:10 jpc brltty[5396]: checking braille device: usb: Jun 9 10:43:10 jpc brltty[5396]: performing USB braille display autodetection. Jun 9 10:43:10 jpc brltty[5396]: checking for 'al' braille display. Jun 9 10:43:10 jpc brltty[5396]: initializing braille driver: al -> usb: Jun 9 10:43:10 jpc brltty[5396]: USB Root: /proc/bus/usb Jun 9 10:43:10 jpc brltty[5396]: linking local socket lock: File exists Jun 9 10:43:10 jpc brltty[5396]: socket 1 established (fd 10) Jun 9 10:43:10 jpc brltty[5396]: USB: testing: vendor=0000 product=0000 Jun 9 10:43:10 jpc brltty[5396]: socket 0 established (fd 9) Jun 9 10:43:10 jpc brltty[5396]: USB: testing: vendor=0403 product=FE72 Jun 9 10:43:10 jpc brltty[5396]: USB: testing: vendor=0000 product=0000 Jun 9 10:43:10 jpc brltty[5396]: USB: testing: vendor=050D product=0109 Jun 9 10:43:10 jpc brltty[5396]: USB: testing: vendor=0000 product=0000 Jun 9 10:43:10 jpc brltty[5396]: USB device not found. Jun 9 10:43:10 jpc brltty[5396]: braille driver initialization failed: al -> usb: Jun 9 10:43:10 jpc brltty[5396]: checking for 'bm' braille display. Jun 9 10:43:10 jpc brltty[5396]: initializing braille driver: bm -> usb: Jun 9 10:43:10 jpc brltty[5396]: USB Root: /proc/bus/usb Jun 9 10:43:10 jpc brltty[5396]: USB: testing: vendor=0000 product=0000 Jun 9 10:43:10 jpc brltty[5396]: USB: testing: vendor=0403 product=FE72 Jun 9 10:43:10 jpc brltty[5396]: USB Language: 409 Jun 9 10:43:10 jpc brltty[5396]: USB: Manufacturer Name: HumanWare Jun 9 10:43:10 jpc brltty[5396]: USB: Product Description: Brailliant 40 Jun 9 10:43:10 jpc brltty[5396]: USB: Serial Number: 25000072 Jun 9 10:43:10 jpc brltty[5396]: USB: ept=81 dir=in xfr=blk pkt=64 ivl=0ms Jun 9 10:43:10 jpc brltty[5396]: USB: ept=02 dir=out xfr=blk pkt=64 ivl=0ms Jun 9 10:43:11 jpc brltty[5396]: USB: ept=81 dir=in xfr=blk pkt=64 ivl=0ms Jun 9 10:43:11 jpc brltty[5396]: USB Root: /proc/bus/usb Jun 9 10:43:11 jpc brltty[5396]: USB: testing: vendor=0000 product=0000 Jun 9 10:43:11 jpc brltty[5396]: USB: testing: vendor=0403 product=FE72 Jun 9 10:43:11 jpc brltty[5396]: USB Language: 409 Jun 9 10:43:11 jpc brltty[5396]: USB: Manufacturer Name: HumanWare Jun 9 10:43:11 jpc brltty[5396]: USB: Product Description: Brailliant 40 Jun 9 10:43:11 jpc brltty[5396]: USB: Serial Number: 25000072 Jun 9 10:43:11 jpc brltty[5396]: USB: ept=81 dir=in xfr=blk pkt=64 ivl=0ms Jun 9 10:43:11 jpc brltty[5396]: USB: ept=02 dir=out xfr=blk pkt=64 ivl=0ms Jun 9 10:43:11 jpc brltty[5396]: USB: ept=81 dir=in xfr=blk pkt=64 ivl=0ms Jun 9 10:43:11 jpc brltty[5396]: USB Root: /proc/bus/usb Jun 9 10:43:11 jpc brltty[5396]: USB: testing: vendor=0000 product=0000 Jun 9 10:43:11 jpc brltty[5396]: USB: testing: vendor=0403 product=FE72 Jun 9 10:43:11 jpc brltty[5396]: USB Language: 409 Jun 9 10:43:11 jpc brltty[5396]: USB: Manufacturer Name: HumanWare Jun 9 10:43:11 jpc brltty[5396]: USB: Product Description: Brailliant 40 Jun 9 10:43:11 jpc brltty[5396]: USB: Serial Number: 25000072 Jun 9 10:43:11 jpc brltty[5396]: USB: ept=81 dir=in xfr=blk pkt=64 ivl=0ms Jun 9 10:43:11 jpc brltty[5396]: USB: ept=02 dir=out xfr=blk pkt=64 ivl=0ms Jun 9 10:43:12 jpc brltty[5396]: USB: ept=81 dir=in xfr=blk pkt=64 ivl=0ms Jun 9 10:43:12 jpc brltty[5396]: braille driver initialization failed: bm -> usb: Jun 9 10:43:12 jpc brltty[5396]: checking for 'fs' braille display. _______________________________________________ This message was sent via the BRLTTY mailing list. To post a message, send an e-mail to: BRLTTY@mielke.cc For general information, go to: http://mielke.cc/mailman/listinfo/brltty