Hi Okash and list, I again have good news, and bad news. The good news is that after making the changes Okash described in spk_ttyio.c and recompiling the speakup modules, the bns driver works over ttyUSB0! Very awesome! I remember wanting this when I got my first machine without an on board serial port in 2000. I also used the driver a lot more extensively over ttyS0 and over ttyUSB0, and still didn't notice issues. Now, for the bad news. The speakup_bns driver isn't releasing the serial port. This is true for both ttyS0 and ttyUSB0. When I unload speakup_bns, and attempt to use minicom over either port, I see this in dmesg: "[ 109.515946] ttyS ttyS0: tty_open: tty->count(2) != #fd's(1) [ 110.517304] ttyS ttyS0: tty_release: tty->count(2) != #fd's(1) [ 110.517400] ttyS ttyS0: tty_open: tty->count(2) != #fd's(1) [ 111.518555] ttyS ttyS0: tty_release: tty->count(2) != #fd's(1) [ 111.518663] ttyS ttyS0: tty_open: tty->count(2) != #fd's(1) [ 113.436335] ttyS ttyS0: tty_release: tty->count(2) != #fd's(1)" "[ 807.947758] ttyUSB ttyUSB0: tty_open: tty->count(3) != #fd's(1) [ 808.152816] ttyUSB ttyUSB0: tty_release: tty->count(3) != #fd's(1) [ 808.155764] ttyUSB ttyUSB0: tty_open: tty->count(3) != #fd's(1) [ 808.520824] ttyUSB ttyUSB0: tty_release: tty->count(3) != #fd's(1) [ 808.523768] ttyUSB ttyUSB0: tty_open: tty->count(3) != #fd's(1) [ 810.947111] ttyUSB ttyUSB0: tty_release: tty->count(3) != #fd's(1)" If I modprobe speakup_bns again, I can use it just fine, unload, and reload again without problems. I also found that after using speakup_bns over the usb to serial converter and unloading the speakup_bns module, I then can't unload the belkin_sa module, even though I see no other modules using it from lsmod. I assume the same holds true for the standard port modules, but didn't try unloading them as well. When I unplug the usb to serial converter after using it with speakup_bns, and unloading speakup_bns, and plug it back in, it gets assigned /dev/ttyUSB1 instead of being assigned /dev/ttyUSB0 as normally happens. Thanks again for your work. Greg On Sat, Apr 22, 2017 at 08:38:28AM +0100, Okash Khawaja wrote: > Hi Greg, > > Thanks for the tests, very helpful. Okay so it doesn't look too bad. > -- web site: http://www.gregn.net gpg public key: http://www.gregn.net/pubkey.asc skype: gregn1 (authorization required, add me to your contacts list first) If we haven't been in touch before, e-mail me before adding me to your contacts. -- Free domains: http://www.eu.org/ or mail dns-manager@xxxxxx _______________________________________________ Speakup mailing list Speakup@xxxxxxxxxxxxxxxxx http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
