dc.901 thanks!
- Try the USB device in different computer, does it work? YES (3 computers)
- On your Slackware machine, plugin a different USB device; does it also get ejected? Others devices no problem
- Try different USB port on Slackware machine? Test in all ports
Complementing:
I'm doing the tests with 3 different machines
And using 2 different devices: Pinpad - Geretec PPC920 and also PPC910
Only in the cases of Slackware 14.2 and in the current version the problem is presented.
https://www.gertec.com.br/produtos/ppc920/
https://www.gertec.com.br/produtos/ppc910/
The devices are listed in /usr/share/usb.ids and /lib/udev/hwbd.d/20-usb-vendor-model.hwdb
dmesg after connecting device
[ 117.487030] usb 3-1: new full-speed USB device number 2 using uhci_hcd
[ 117.657054] usb 3-1: Dual-Role OTG device on non-HNP port
[ 117.660055] usb 3-1: New USB device found, idVendor=1753, idProduct=c902, bcdDevice= 0.01
[ 117.660059] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 117.660063] usb 3-1: Product: PPC920 Pinpad Terminal
[ 117.660066] usb 3-1: Manufacturer: GERTEC
[ 117.797099] usb 3-1: USB disconnect, device number 2
[ 118.205187] usbcore: registered new interface driver cdc_acm
[ 118.205189] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 962.289117] usb 3-2: new full-speed USB device number 3 using uhci_hcd
[ 962.459140] usb 3-2: Dual-Role OTG device on non-HNP port
[ 962.462142] usb 3-2: New USB device found, idVendor=1753, idProduct=c901, bcdDevice= 0.01
[ 962.462146] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 962.462150] usb 3-2: Product: PPC900 Pinpad Terminal
[ 962.462153] usb 3-2: Manufacturer: GERTEC
[ 962.465307] cdc_acm 3-2:1.0: ttyACM0: USB ACM device
[ 962.467523] usb 3-2: USB disconnect, device number 3