Hi all and Greg, That's good news! Regarding ttyS0 and ttyUSB0 lockup, they are held by speakup.ko. Synth specific modules only use them. So unloading speakup.ko should free those. Like I mentioned in another thread, I tested Apollo that Keith sent me, and that works fine. DoubleTalk was also looking good. So overall this change taking good shape :) We _do_ need to test DECEXT though, in order to upstream the changes. That and serdev are the only two things outstanding now. Okash On Mon, Apr 24, 2017 at 4:48 AM, Gregory Nowak <greg@xxxxxxxxx> wrote: > 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 _______________________________________________ Speakup mailing list Speakup@xxxxxxxxxxxxxxxxx http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
