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mcb: export bus information via sysfs

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Export information about the bus stored in the FPGA's header to userspace via
sysfs, instead of hiding it in pr_debug()s from everyone.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Andreas Werner <andreas.werner@men.de>
Tested-by: Andreas Werner <andreas.werner@men.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johannes Thumshirn
2016-05-03 09:46:23 +02:00
committed by Greg Kroah-Hartman
parent 18d2881980
commit 803f1ca60d
5 changed files with 103 additions and 11 deletions
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9
include/linux/mcb.h
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@@ -15,6 +15,8 @@
#include <linux/device.h>
#include <linux/irqreturn.h>
#define CHAMELEON_FILENAME_LEN 12
struct mcb_driver;
struct mcb_device;
@@ -25,11 +27,18 @@ struct mcb_device;
* @carrier: pointer to carrier device
* @bus_nr: mcb bus number
* @get_irq: callback to get IRQ number
* @revision: the FPGA's revision number
* @model: the FPGA's model number
* @filename: the FPGA's name
*/
struct mcb_bus {
struct device dev;
struct device *carrier;
int bus_nr;
u8 revision;
char model;
u8 minor;
char name[CHAMELEON_FILENAME_LEN + 1];
int (*get_irq)(struct mcb_device *dev);
};
#define to_mcb_bus(b) container_of((b), struct mcb_bus, dev)