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[PATCH] EISA bus MODALIAS attributes support

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Add modalias attribute support for the almost forgotten now EISA bus and
(at least some) EISA-aware modules.

The modalias entry looks like (for an 3c509 NIC):

 eisa:sTCM5093

and the in-module alias like:

 eisa:sTCM5093*

The patch moves struct eisa_device_id declaration from include/linux/eisa.h
to include/linux/mod_devicetable.h (so that the former now #includes the
latter), adds proper MODULE_DEVICE_TABLE(eisa, ...) statements for all
drivers with EISA IDs I found (some drivers already have that DEVICE_TABLE
declared), and adds recognision of __mod_eisa_device_table to
scripts/mod/file2alias.c so that proper modules.alias will be generated.

There's no support for /lib/modules/$kver/modules.eisamap, as it's not used
by any existing tools, and because with in-kernel modalias mechanism those
maps are obsolete anyway.

The rationale for this patch is:

 a) to make EISA bus to act as other busses with modalias
    support, to unify driver loading

 b) to foget about EISA finally - with this patch, kernel
    (who still supports EISA) will be the only one who knows
    how to choose the necessary drivers for this bus ;)

[akpm@osdl.org: fix the kbuild bit]
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Acked-the-net-bits-by: Jeff Garzik <jeff@garzik.org>
Acked-the-tulip-bit-by: Valerie Henson <val_henson@linux.intel.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Michael Tokarev
2006-09-27 01:50:56 -07:00
committed by Linus Torvalds
parent ebba5f9fcb
commit 07563c711f
11 changed files with 56 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/eisa/eisa-bus.c
View File

@@ -128,9 +128,23 @@ static int eisa_bus_match (struct device *dev, struct device_driver *drv)
return 0;
}
static int eisa_bus_uevent(struct device *dev, char **envp, int num_envp,
char *buffer, int buffer_size)
{
struct eisa_device *edev = to_eisa_device(dev);
int i = 0;
int length = 0;
add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
"MODALIAS=" EISA_DEVICE_MODALIAS_FMT, edev->id.sig);
envp[i] = NULL;
return 0;
}
struct bus_type eisa_bus_type = {
.name = "eisa",
.match = eisa_bus_match,
.uevent = eisa_bus_uevent,
};
int eisa_driver_register (struct eisa_driver *edrv)
@@ -160,6 +174,14 @@ static ssize_t eisa_show_state (struct device *dev, struct device_attribute *att
static DEVICE_ATTR(enabled, S_IRUGO, eisa_show_state, NULL);
static ssize_t eisa_show_modalias (struct device *dev, struct device_attribute *attr, char *buf)
{
struct eisa_device *edev = to_eisa_device (dev);
return sprintf (buf, EISA_DEVICE_MODALIAS_FMT "\n", edev->id.sig);
}
static DEVICE_ATTR(modalias, S_IRUGO, eisa_show_modalias, NULL);
static int __init eisa_init_device (struct eisa_root_device *root,
struct eisa_device *edev,
int slot)
@@ -209,6 +231,7 @@ static int __init eisa_register_device (struct eisa_device *edev)
device_create_file (&edev->dev, &dev_attr_signature);
device_create_file (&edev->dev, &dev_attr_enabled);
device_create_file (&edev->dev, &dev_attr_modalias);
return 0;
}