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TOSH1800-SMCINIT(8)               Linux IrDA               TOSH1800-SMCINIT(8)

       tosh1800-smcinit - initialize the IrDA controler on Toshiba laptops

       tosh1800-smcinit [OPTION]

       IrDA  configurator  for  laptops  with  ALI1533  bridge (LPC47N227 SuperIO), smc-ircc and not initializing BIOS
       (tested on Toshiba Satellite 1800-514, Toshiba Satellite 5100 and Toshiba Tecra 9100) to  be  used  with  Linux

       Toshiba  Satellite  1800 laptops are provided with a SMCS LPC47N227 SuperIO chip which is IrDA SIR/FIR capable.
       The chip is connected through an ALI1533 PCI-ISA bridge.  The IrDA subsystem of the SuperIO chip  is  supported
       by the smc-ircc Linux kernel module.  Unfortunately the BIOS neither configurates the SuperIO chip IrDA subsys-
       tem (SIR port, FIR port, dma, irq, IrDA mode, power) nor sets the PCI-ISA bridge to  decode  any  usable  port.
       Linux  kernel is thus prevented to detect the second UART making impossible to use it in SIR mode. For the same
       reason, the FIR mode smc-ircc is able to detect the SuperIO chip but, once found the IrDA  subsystem  unconfig-
       ured, fails to install.

       tosh1800-smcinit  sets SIR and FIR ioport addresses, DMA and IRQ of the SuperIO chip IrDA subsystem then powers
       on the second UART. It also configures the PCI-ISA bridge to decode SIR and FIR ports.  All this  configuration
       work  should  be rather done into the kernel but it was more practical and safe to make a small testing tool of
       it. It can be probably extended to include configuration kludges for other similar SuperIO and ISA bridge  com-

       Testing  was carried on a Toshiba Satellite 1800-514 with Linux kernel 2.4.17.  I hope this work could be help-
       ful, it was quite funny to do it however.

       -a, --skip-decoding-cfg
              Skip ISA bridge decoding configuration.

       -b, --skip-smc-ircc-cfg
              Skip SMC-IRCC configuration.

       -v, --vendor=VALUE
              Look for the specified ISA bridge PCI vendor ID

       -x, --device=VALUE
              Look for the specified ISA bridge PCI device ID

       -c, --cfgbase=VALUE
              Set SMC-IRCC IO cfgbase address. Usual value can be 0x2e.

       -s, --sirbase=VALUE
              Set SMC-IRCC IO sirbase address. Usual value can be 0x2e8.

       -f, --firbase=VALUE
              Set SMC-IRCC IO firbase address. Usual value can be 0x2f8.

       -m, --dma=VALUE
              Set SMC-IRCC DMA channel. Usual value can be 3.

       -i, --irq=VALUE
              Set SMC-IRCC IRQ. Usual value can be 7.

       -p, --print
              Print ISA bridge configuration.

       -V, --version
              Show program version.

       -h, --help
              Show program options.

       This program was made by Daniele Peri <>

       SMSC for the downloadable datasheets

       Paul Hampson for its Linux IrDA mailing list messages.

       Manual page written by Claudiu Costin <>. Documentation based on  original  README  by  Daniele

       irdadump(1), Daniele Peri's home page, the SMCINIT package home page.

0.3                                July 2003               TOSH1800-SMCINIT(8)