Am Freitag, 11. November 2022, 19:37:08 CET schrieb to...@tuxteam.de: > On Fri, Nov 11, 2022 at 04:38:21PM +0100, Claudia Neumann wrote: > > Hi Tomas, > > Hi Tomas,
I did as you said. You find the results in the attachments. There is a differenz in udev behaviour on inserting the device. Perhaps it is this Flexocard identification. The device I am using is not a Flexocard device. I don't know if there is a relation between Zemo, the manufacturer of the VML-GK2, and Flexocard. How can I get rid of that Flexocard configuration? I tried stty -F /fev/ttyACM0 115200 parenb -parodd -cstopb which was used in the old times on /dev/ttyS0. But that did not change anything. So it seems to be something with udev?? Thanks for the help. Best regards Claudia > > Am Freitag, 11. November 2022, 06:54:36 CET schrieb to...@tuxteam.de: > > > On Thu, Nov 10, 2022 at 11:21:21PM +0100, Claudia Neumann wrote: > [...] > > Thanks. The only difference I can see is: > > [Debian 11] > [...] > > > After: > [...] > > > Bus 001 Device 008: ID 1f61:0001 Flexocard GmbH VML-GK2 (USB) > > [...] > > > iManufacturer 1 Flexocard GmbH > > iProduct 2 VML-GK2 (USB) > > iSerial 3 2009002 > > [Debian 10]; > [...] > > > After: > [...] > > > Bus 001 Device 014: ID 1f61:0001 > > [...] > > > iManufacturer 1 > > iProduct 2 > > iSerial 3 > > This would kind of make sense: the newer kernel has a more complete > USB device database and "knows" the Flexocard device. > > Now I see a couple of possibilities. Either the newer drivers are > buggy, or some other program (perhaps courtesy of udev) "thinks" it > has to take care of this USB gadget. To get a clearer idea about the > second, you might try to run "udevadm monitor" while you insert your > device. > > Another thing to check is whether any application has /dev/ttyACM0 > (that was its name, wasn't it?) open is to query it with `lsof`. > > Ah, you might also want to see what parameters this pseudo-serial > interface it has, e.g. `stty -a < /dev/ttyACM0'. > > Sorry: if it seems like I'm poking in the dark, then that' perhaps > because I am :-) > > Cheers > -- > tomás
root@Mediondebn:~# udevadm monitor monitor will print the received events for: UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent KERNEL[2035.060329] add /devices/pci0000:00/0000:00:14.0/usb1/1-4 (usb) KERNEL[2035.067291] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0 (usb) KERNEL[2035.067318] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.1 (usb) KERNEL[2035.067352] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4 (usb) UDEV [2035.079950] add /devices/pci0000:00/0000:00:14.0/usb1/1-4 (usb) UDEV [2035.082479] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.1 (usb) KERNEL[2035.088880] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.1 (usb) KERNEL[2035.088911] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/tty/ttyACM0 (tty) KERNEL[2035.088951] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0 (usb) KERNEL[2035.088970] add /bus/usb/drivers/cdc_acm (drivers) KERNEL[2035.088983] add /module/cdc_acm (module) UDEV [2035.089029] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0 (usb) UDEV [2035.089748] add /bus/usb/drivers/cdc_acm (drivers) UDEV [2035.090184] add /module/cdc_acm (module) UDEV [2035.093556] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4 (usb) UDEV [2035.094826] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.1 (usb) UDEV [2035.095798] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/tty/ttyACM0 (tty) UDEV [2035.096868] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0 (usb) No message on lsof | grep ttyACM root@Mediondebn:~# stty -a < /dev/ttyACM0 speed 9600 baud; rows 0; columns 0; line = 0; intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; discard = ^O; min = 1; time = 0; -parenb -parodd -cmspar cs8 hupcl -cstopb cread clocal -crtscts -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel -iutf8 opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke -flusho -extproc
root@Mediondebn:~# udevadm monitor monitor will print the received events for: UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent KERNEL[145.449225] add /devices/pci0000:00/0000:00:14.0/usb1/1-4 (usb) KERNEL[145.450616] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0 (usb) KERNEL[145.450776] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/tty/ttyACM0 (tty) KERNEL[145.450800] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0 (usb) KERNEL[145.450821] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.1 (usb) KERNEL[145.450844] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.1 (usb) KERNEL[145.450867] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4 (usb) UDEV [145.454702] add /devices/pci0000:00/0000:00:14.0/usb1/1-4 (usb) UDEV [145.455832] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0 (usb) UDEV [145.456187] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.1 (usb) UDEV [145.456878] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.1 (usb) UDEV [145.457303] add /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0/tty/ttyACM0 (tty) UDEV [145.458222] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4:1.0 (usb) UDEV [145.462165] bind /devices/pci0000:00/0000:00:14.0/usb1/1-4 (usb) No message on lsof | grep ttyACM0 root@Mediondebn:~# stty -a < /dev/ttyACM0 speed 9600 baud; rows 0; columns 0; line = 0; intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; discard = ^O; min = 1; time = 0; -parenb -parodd -cmspar cs8 hupcl -cstopb cread clocal -crtscts -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel -iutf8 opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke -flusho -extproc
