PCMCIA_CORE

Section: Devices and Network Interfaces (4)
Updated: 2002/07/10 05:08:16
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NAME

pcmcia_core - PCMCIA Card Services core module

 

SYNOPSIS

insmod pcmcia_core.o [pc_debug=n] [setup_delay=n] [resume_delay=n] [shutdown_delay=n] [vcc_settle=n] [reset_time=n] [unreset_delay=n] [unreset_check=n] [unreset_limit=n] [cis_speed=n] [io_speed=n] [cis_width=n] [probe_io=n] [probe_mem=n] [cb_mem_base=n] [cb_bus_base=n] [cb_bus_step=n] [cb_pci_irq=n]

 

DESCRIPTION

Pcmcia_core is the core Card Services module, required for all drivers for specific PCMCIA cards. It is loaded prior to loading any socket device drivers.

In the event that kernel version mismatches prevent this module from being loaded, version information can be extracted from the module itself by doing:

strings -n 10 pcmcia_core.o | head -3

 

PARAMETERS

pc_debug=n
Selects the PCMCIA debugging level. This parameter is only available if the module is compiled with debugging enabled. A non-zero value enables debugging.
setup_delay=n
Sets the delay between when a card is first detected, and when it will be powered up. In 1/100 second increments, the default is 5.
resume_delay=n
Sets the delay between when a resume event is processed, and when a suspended card will be powered up. In 1/100 second increments, the default is 20.
shutdown_delay=n
Sets the delay between when when a card removal event is detected, and when the socket will be disabled. In 1/100 second increments, the default is 5.
vcc_settle=n
Sets the time to wait after first applying power to a socket before accessing a card. In 1/100 second increments, the default is 40.
reset_time=n
Sets how long the software reset signal will be asserted, in microseconds. The default is 10.
unreset_delay=n
Sets the delay between when a card is reset, and when the card will first be checked to see if it is ready. In 1/100 second increments, the default is 10. This delay should be increased for cards that raise the ready signal prematurely.
unreset_check=n
Sets how often to check to see if a card is ready after it is sent a software reset. In 1/100 second increments, the default is 10.
unreset_limit=n
Sets the maximum number of checks to make before pronouncing a card to be dead. The default is 50 (i.e., 5 seconds).
cis_speed=n
Sets the access delay in nanoseconds for CIS memory windows. This parameter only affects card identification. The default is 300 ns.
cis_width=n
If this flag is set, then CIS windows are configured for 16-bit transfers. The default is 0 (i.e., use 8-bit transfers).
io_speed=n
Sets the access delay in nanoseconds for IO port windows. The default is 0.
probe_io=n
A flag indicating if Card Services should probe IO port regions for conflicts with other devices unknown to Linux. The default is 1 (true).
probe_mem=n
A flag indicating if Card Services should probe memory windows for conflicts with ROM extensions or memory-mapped devices. The default is 1 (true).

 

CardBus bridge configuration settings

The following module parameters are only available under pre-2.4.* kernels. Under 2.4.* kernels, we rely on the kernel's PCI subsystem to set up the bridge correctly.
cb_mem_base=n
Sets the base address to use for memory mapping CardBus bridge registers. By default, bridges that are not already initialized by the PCI BIOS will be mapped at 0x68000000. If this parameter is set, then this value will override any existing mappings.
cb_bus_base=n
Specifies that PCI bus numbers for CardBus busses should be renumbered starting with this value. By default, bus values that are uninitialized at boot time will be numbered starting with bus 0x20.
cb_bus_step=n
Specifies the number of bus slots to reserve for secondary PCI busses, for each CardBus socket, when busses are renumbered. The default is 2.
cb_pci_irq=n
Specifies an interrupt number 1..15 to be assigned to any CardBus bridge whose PCI interrupt was not set by the BIOS. The default is to pick an interrupt based on the BIOS PCI Interrupt Routing table only when the table is unambiguous.

 

AUTHOR

David Hinds - dahinds@users.sourceforge.net

 

SEE ALSO

cardmgr(8), pcmcia(5).


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS
CardBus bridge configuration settings
AUTHOR
SEE ALSO

linux.jgfs.net manual pages