HelenOS sources
C_PLE 224 uspace/drv/bus/usb/ohci/hc.c OHCI_CLR(instance->registers->control, C_PLE | C_IE);
C_PLE 226 uspace/drv/bus/usb/ohci/hc.c OHCI_SET(instance->registers->control, C_PLE | C_IE);
C_PLE 257 uspace/drv/bus/usb/ohci/hc.c OHCI_CLR(instance->registers->control, C_PLE | C_IE);
C_PLE 259 uspace/drv/bus/usb/ohci/hc.c OHCI_SET(instance->registers->control, C_PLE | C_IE);
C_PLE 511 uspace/drv/bus/usb/ohci/hc.c OHCI_SET(instance->registers->control, (C_PLE | C_IE | C_CLE | C_BLE));
HelenOS homepage, sources at GitHub