About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

Documentation / pcmcia / driver.txt




Custom Search

Based on kernel version 3.16. Page generated on 2014-08-06 21:40 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.
Hide Line Numbers
About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

Information is copyright its respective author. All material is available from the Linux Kernel Source distributed under a GPL License. This page is provided as a free service by mjmwired.net.