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Documentation / pcmcia / driver.txt


Based on kernel version 4.16.1. Page generated on 2018-04-09 11:53 EST.

1	PCMCIA Driver
2	-------------
3	
4	
5	sysfs
6	-----
7	
8	New PCMCIA IDs may be added to a device driver pcmcia_device_id table at
9	runtime as shown below:
10	
11	echo "match_flags manf_id card_id func_id function device_no \
12	prod_id_hash[0] prod_id_hash[1] prod_id_hash[2] prod_id_hash[3]" > \
13	/sys/bus/pcmcia/drivers/{driver}/new_id
14	
15	All fields are passed in as hexadecimal values (no leading 0x).
16	The meaning is described in the PCMCIA specification, the match_flags is
17	a bitwise or-ed combination from PCMCIA_DEV_ID_MATCH_* constants
18	defined in include/linux/mod_devicetable.h.
19	
20	Once added, the driver probe routine will be invoked for any unclaimed
21	PCMCIA device listed in its (newly updated) pcmcia_device_id list.
22	
23	A common use-case is to add a new device according to the manufacturer ID
24	and the card ID (form the manf_id and card_id file in the device tree).
25	For this, just use:
26	
27	echo "0x3 manf_id card_id 0 0 0 0 0 0 0" > \
28	        /sys/bus/pcmcia/drivers/{driver}/new_id
29	
30	after loading the driver.
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