# # Copyright 2006 Sun Microsystems, Inc. All rights reserved. # Use is subject to license terms. # # #ident "%Z%%M% %I% %E% SMI" # When fast-centronics is set to "true", handshaking between the # driver and the peripheral is conducted by hardware. For some # Centronics devices the hardware handshaking is too fast for the # peripheral. To slow down the handshaking, fast-centronics must # be set to "false". By default fast-centronics is set to "false". fast-centronics="false"; # When fast-1284-compatible is set to "true", IEEE 1284 compliant # devices operating in Compatibility mode will have the parallel port # handshaking controlled by the hardware. When it is set to "false" # handshaking is PIO controlled by the driver. By default # fast-1284-compatible is set "true". fast-1284-compatible="true"; # Some Centronics devices require the Init signal to be toggled upon # power-up. The application should do this directly with ioctl(2) interface # as specified in ecpp(7d). As an alternative to using the API, the driver # may be configured to toggle the nInit signal upon every time the device # is opened. If centronics-init-seq is set to "true" the Init signal # will be toggled when the device is opened. The default is "false". centronics-init-seq="false"; # When the ecpp driver detects a Centronics device is in an error state, # ecpp will re-examine the device every centronics-retry milliseconds. # The default is 750 milliseconds. centronics-retry=750; # Some Centronics printers continue to assert BUSY after the ACK pulse. # The driver waits for centronics-wait-for-busy microseconds for a # desertion of BUSY before it queues the current data transfer. # The default is 5000 microseconds (5ms). centronics-wait-for-busy=5000; # Devices that are not using fast handshaking may adjust the data setup # time and the strobe pulse width. The Centronics specification states that # each must be at least 1 microsecond. The default values are set to # 2 microseconds to ensure reliable transfers. centronics-data-setup-time=2; centronics-strobe-pulse-width=2; # The ecpp driver waits ecpp-transfer-timeout seconds before it aborts # the current transfer and put the untransferred data back on the queue. # The default value for ecpp-transfer-timeout is 90 seconds. ecpp-transfer-timeout=90; # The following note applies to x86 platforms only # If a system has a standard parallel port, but not enumerated # in the device tree, you may gain access to the port by uncommenting # the following lines and run "update_drv ecpp". # # name="lp" parent="/isa" interrupts=7 reg=1,0x378,0x8;