Symbol: IER_RDA
src/add-ons/kernel/drivers/ports/pc_serial/SerialDevice.cpp
289
fCachedIER = IER_RLS | IER_MS | IER_RDA;
src/add-ons/kernel/drivers/ports/pc_serial/SerialDevice.cpp
399
WriteReg8(IER, fCachedIER & ~(IER_RLS | IER_MS | IER_RDA | IER_THRE));