diff options
| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2013-07-03 15:08:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 16:08:05 -0700 |
| commit | 3bdbb62fe97537252b22f700009863eeb51aa750 (patch) | |
| tree | 7a3150f7496f951ac6de51f2156cf29fc8f9a73f /drivers/rapidio/rio-sysfs.c | |
| parent | fdf90abc00979fb2d61dbdba9e855200e236142b (diff) | |
rapidio: add udev notification
Add RapidIO-specific modalias generation to enable udev notifications
about RapidIO-specific events.
The RapidIO modalias string format is shown below:
"rapidio:vNNNNdNNNNavNNNNadNNNN"
Where:
v - Device Vendor ID (16 bit),
d - Device ID (16 bit),
av - Assembly Vendor ID (16 bit),
ad - Assembly ID (16 bit),
as they are reported in corresponding Capability Registers (CARs)
of each RapidIO device.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Andre van Herk <andre.van.herk@Prodrive.nl>
Cc: Micha Nelissen <micha.nelissen@Prodrive.nl>
Cc: Stef van Os <stef.van.os@Prodrive.nl>
Cc: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio/rio-sysfs.c')
| -rw-r--r-- | drivers/rapidio/rio-sysfs.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c index 0c4473e54f86..9331be646dc3 100644 --- a/drivers/rapidio/rio-sysfs.c +++ b/drivers/rapidio/rio-sysfs.c @@ -84,6 +84,15 @@ static ssize_t lnext_show(struct device *dev, return str - buf; } +static ssize_t modalias_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct rio_dev *rdev = to_rio_dev(dev); + + return sprintf(buf, "rapidio:v%04Xd%04Xav%04Xad%04X\n", + rdev->vid, rdev->did, rdev->asm_vid, rdev->asm_did); +} + struct device_attribute rio_dev_attrs[] = { __ATTR_RO(did), __ATTR_RO(vid), @@ -93,6 +102,7 @@ struct device_attribute rio_dev_attrs[] = { __ATTR_RO(asm_rev), __ATTR_RO(lprev), __ATTR_RO(destid), + __ATTR_RO(modalias), __ATTR_NULL, }; |