slot(C) 19 June 1992 slot(C) Name slot - read the microchannel configuration registers Syntax /etc/slot [ -a adid ] [ -s slot ] [ -f adnamesfile ] Description The slot command displays the contents of the configuration POS registers on a microchannel architecture machine, and names the adapter cards currently configured in each slot. For each of the eight adapter slots, slot shows the slot number, the unique adapter id (four digits in hexadecimal from registers 0x100 and 0x101), the contents of the remaining six POS registers (two hexadecimal digits each), followed by the adapter card name. The default slot display looks similar to this: Slot AdID Regs 0x102-0x107 Adapter Name 1 ---- -- -- -- -- -- -- Empty Slot 2 0f1f 01 3b f7 31 ff ff Adaptec 1640 SCSI Host Adapter 3 ---- -- -- -- -- -- -- Empty Slot 4 6bbc 81 00 00 85 ff ff Apricot Synchronous Communications Adapter 5 6bba 81 00 00 b6 ff ff Apricot Ethernet Controller 6 dfbf 05 02 ff ff ff ff IBM 6157 Streaming Tape 7 ---- -- -- -- -- -- -- Empty Slot 8 ---- -- -- -- -- -- -- Empty Slot The available slot options select a particular adapter id, a particular slot, or select an alternative names file. -a adid shows only the information for those slots in which an adapter of that id is configured (no display if no such adapter). adid should be specified in hexadecimal. For example, /etc/slot -a dfbf shows only those slots which contain an IBM 6157 Streaming Tape adapter card. -s slot shows only the information for that slot (no display if that slot is empty). For example, /etc/slot -s 6 shows only the information for slot 6. -f adnamesfile the text displayed by /etc/slot is normally read from the file /etc/default/slot. This option redirects it to read from an alternative file adnamesfile. For example, /etc/slot -f /dev/null shows only the register contents of occupied slots, without the accompanying text, which can be useful when processing the output automatically in a shell script. Diagnostics Returns 0 upon successful completion. Returns 1 if incorrectly invoked, if the machine is not a microchannel architecture machine (/dev/mcapos unreadable), if the selected adapter id is not found, or if the selected slot is empty. Files /etc/default/slot This file contains the headers, footers and adapter names shown by the slot utility. The text in this file may be translated, or extended as new adapters are announced. The display of header lines, empty slots, and footers may be suppressed by omitting their text. /dev/mcapos The slot utility reads the 64 bytes of MCA POS register configuration information from this device. Notes If run on a machine which does not have the microchannel architecture, slot reports ``not an MCA machine'' and exits with diagnostic 1. If an adapter id is not listed in /etc/default/slot, slot reports ``Unknown card'' for that slot. The System Administrator should add an entry for that adapter id to /etc/default/slot. slot reports what adapter is configured in which slot. No indication is given as to whether that adapter is working, nor whether that adapter is connected to working hardware. No indication is given as to whether the current SCO UNIX System V kernel supports that adapter, nor whether a driver for that adapter is available for SCO UNIX System V. slot cannot be used to change the configuration shown. To change the con- figuration, use the setup disk supplied with your machine. Consult the hardware documentation supplied with your machine for details concerning the use of the setup disk. See also hwconfig(C) Value added slot is an extension of AT&T System V provided by The Santa Cruz Opera- tion, Inc.