on some input device, get_phys() was throwing an IOError exception.  mask it so that search for other devices will proceed
on some input device, get_phys() was throwing an IOError exception.  mask it so that search for other devices will proceed

Cid427/machinekit,aschiffler/linuxcnc,bmwiedemann/linuxcnc-mirror,strahlex/machinekit,ArcEye/machinekit-testing,kinsamanka/machinekit,jaguarcat79/ILC-with-LinuxCNC,unseenlaser/machinekit,mhaberler/machinekit,araisrobo/linuxcnc,yishinli/emc2,araisrobo/linuxcnc,EqAfrica/machinekit,cdsteinkuehler/MachineKit,yishinli/emc2,bmwiedemann/linuxcnc-mirror,narogon/linuxcnc,ikcalB/linuxcnc-mirror,mhaberler/machinekit,bmwiedemann/linuxcnc-mirror,mhaberler/machinekit,yishinli/emc2,Cid427/machinekit,cdsteinkuehler/MachineKit,unseenlaser/machinekit,araisrobo/machinekit,ArcEye/MK-Qt5,EqAfrica/machinekit,araisrobo/machinekit,ikcalB/linuxcnc-mirror,ArcEye/machinekit-testing,Cid427/machinekit,cdsteinkuehler/linuxcnc,araisrobo/linuxcnc,mhaberler/machinekit,RunningLight/machinekit,unseenlaser/linuxcnc,araisrobo/machinekit,EqAfrica/machinekit,cnc-club/linuxcnc,ArcEye/MK-Qt5,aschiffler/linuxcnc,cdsteinkuehler/MachineKit,kinsamanka/machinekit,strahlex/machinekit,mhaberler/machinekit,unseenlaser/machinekit,narogon/linuxcnc,EqAfrica/machinekit,narogon/linuxcnc,EqAfrica/machinekit,jaguarcat79/ILC-with-LinuxCNC,ianmcmahon/linuxcnc-mirror,bobvanderlinden/machinekit,cnc-club/linuxcnc,jaguarcat79/ILC-with-LinuxCNC,narogon/linuxcnc,aschiffler/linuxcnc,ArcEye/MK-Qt5,strahlex/machinekit,araisrobo/machinekit,ArcEye/MK-Qt5,strahlex/machinekit,cdsteinkuehler/linuxcnc,cdsteinkuehler/MachineKit,cnc-club/linuxcnc,kinsamanka/machinekit,cnc-club/linuxcnc,ArcEye/machinekit-testing,cnc-club/linuxcnc,jaguarcat79/ILC-with-LinuxCNC,cdsteinkuehler/linuxcnc,RunningLight/machinekit,cnc-club/linuxcnc,unseenlaser/linuxcnc,yishinli/emc2,araisrobo/linuxcnc,cdsteinkuehler/MachineKit,Cid427/machinekit,RunningLight/machinekit,RunningLight/machinekit,RunningLight/machinekit,RunningLight/machinekit,RunningLight/machinekit,araisrobo/linuxcnc,ikcalB/linuxcnc-mirror,araisrobo/machinekit,bmwiedemann/linuxcnc-mirror,ArcEye/MK-Qt5,ArcEye/MK-Qt5,ikcalB/linuxcnc-mirror,ArcEye/MK-Qt5,mhaberler/machinekit,aschiffler/linuxcnc,bmwiedemann/linuxcnc-mirror,cdsteinkuehler/linuxcnc,ArcEye/machinekit-testing,ianmcmahon/linuxcnc-mirror,kinsamanka/machinekit,ianmcmahon/linuxcnc-mirror,Cid427/machinekit,Cid427/machinekit,ArcEye/MK-Qt5,ikcalB/linuxcnc-mirror,strahlex/machinekit,mhaberler/machinekit,ArcEye/machinekit-testing,unseenlaser/machinekit,cdsteinkuehler/linuxcnc,ianmcmahon/linuxcnc-mirror,unseenlaser/machinekit,kinsamanka/machinekit,bobvanderlinden/machinekit,ianmcmahon/linuxcnc-mirror,araisrobo/machinekit,aschiffler/linuxcnc,unseenlaser/linuxcnc,ArcEye/machinekit-testing,Cid427/machinekit,bobvanderlinden/machinekit,cnc-club/linuxcnc,bobvanderlinden/machinekit,kinsamanka/machinekit,ArcEye/machinekit-testing,bobvanderlinden/machinekit,unseenlaser/machinekit,jaguarcat79/ILC-with-LinuxCNC,kinsamanka/machinekit,strahlex/machinekit,bmwiedemann/linuxcnc-mirror,araisrobo/machinekit,narogon/linuxcnc,kinsamanka/machinekit,ianmcmahon/linuxcnc-mirror,cdsteinkuehler/linuxcnc,unseenlaser/linuxcnc,EqAfrica/machinekit,bobvanderlinden/machinekit,unseenlaser/linuxcnc,Cid427/machinekit,mhaberler/machinekit,araisrobo/machinekit,bobvanderlinden/machinekit,ikcalB/linuxcnc-mirror,cdsteinkuehler/MachineKit,unseenlaser/machinekit,EqAfrica/machinekit,EqAfrica/machinekit,bmwiedemann/linuxcnc-mirror,ianmcmahon/linuxcnc-mirror,unseenlaser/machinekit,RunningLight/machinekit,araisrobo/machinekit,ArcEye/machinekit-testing,bobvanderlinden/machinekit,ikcalB/linuxcnc-mirror,strahlex/machinekit