hm2: ensure in-order, 32-bit aligned pci transfers
hm2: ensure in-order, 32-bit aligned pci transfers

This works around a problem with memcpy() in the 3.x linux kernel.

Thanks to Peter Wallace for the fix.

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