| ============= |
| 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. |
