| ============= | |
| PCMCIA Driver | |
| ============= | |
| sysfs | |
| ----- | |
| New PCMCIA IDs may be added to a device driver pcmcia_device_id table at | |
| runtime as shown below:: | |
| echo "match_flags manf_id card_id func_id function device_no \ | |
| prod_id_hash[0] prod_id_hash[1] prod_id_hash[2] prod_id_hash[3]" > \ | |
| /sys/bus/pcmcia/drivers/{driver}/new_id | |
| All fields are passed in as hexadecimal values (no leading 0x). | |
| The meaning is described in the PCMCIA specification, the match_flags is | |
| a bitwise or-ed combination from PCMCIA_DEV_ID_MATCH_* constants | |
| defined in include/linux/mod_devicetable.h. | |
| Once added, the driver probe routine will be invoked for any unclaimed | |
| PCMCIA device listed in its (newly updated) pcmcia_device_id list. | |
| A common use-case is to add a new device according to the manufacturer ID | |
| and the card ID (form the manf_id and card_id file in the device tree). | |
| For this, just use:: | |
| echo "0x3 manf_id card_id 0 0 0 0 0 0 0" > \ | |
| /sys/bus/pcmcia/drivers/{driver}/new_id | |
| after loading the driver. |