Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1006 B
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31 lines
1006 B
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=============
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PCMCIA Driver
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=============
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sysfs
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-----
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New PCMCIA IDs may be added to a device driver pcmcia_device_id table at
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runtime as shown below::
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echo "match_flags manf_id card_id func_id function device_no \
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prod_id_hash[0] prod_id_hash[1] prod_id_hash[2] prod_id_hash[3]" > \
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/sys/bus/pcmcia/drivers/{driver}/new_id
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All fields are passed in as hexadecimal values (no leading 0x).
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The meaning is described in the PCMCIA specification, the match_flags is
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a bitwise or-ed combination from PCMCIA_DEV_ID_MATCH_* constants
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defined in include/linux/mod_devicetable.h.
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Once added, the driver probe routine will be invoked for any unclaimed
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PCMCIA device listed in its (newly updated) pcmcia_device_id list.
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A common use-case is to add a new device according to the manufacturer ID
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and the card ID (form the manf_id and card_id file in the device tree).
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For this, just use::
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echo "0x3 manf_id card_id 0 0 0 0 0 0 0" > \
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/sys/bus/pcmcia/drivers/{driver}/new_id
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after loading the driver.
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