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30 lines
1006 B
30 lines
1006 B
============= |
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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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