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authorShem Multinymous <multinymous@gmail.com>2006-09-29 08:59:37 (GMT)
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-29 16:18:09 (GMT)
commit2e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9 (patch)
tree9ee9f9d5d1aff04df6d0974883d8817a980dfa37 /drivers/firmware
parent89e7e374dde1015d69d2d70797ae4053b14fa9db (diff)
downloadlinux-2e0c1f6ce7b816f63fea2af3e5e2cb20c66430e9.tar.xz
[PATCH] DMI: Decode and save OEM String information
This teaches dmi_decode() how to decode and save OEM Strings (type 11) DMI information, which is currently discarded silently. Existing code using DMI is not affected. Follows the "System Management BIOS (SMBIOS) Specification" (http://www.dmtf.org/standards/smbios), and also the userspace dmidecode.c code. OEM Strings are the only safe way to identify some hardware, e.g., the ThinkPad embedded controller used by the soon-to-be-submitted tp_smapi driver. This will also let us eliminate the long whitelist in the mainline hdaps driver (in a future patch). Signed-off-by: Shem Multinymous <multinymous@gmail.com> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/dmi_scan.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index b9e3886..b8b596d 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -123,6 +123,26 @@ static void __init dmi_save_devices(struct dmi_header *dm)
dev->type = *d++ & 0x7f;
dev->name = dmi_string(dm, *d);
dev->device_data = NULL;
+ list_add(&dev->list, &dmi_devices);
+ }
+}
+
+static void __init dmi_save_oem_strings_devices(struct dmi_header *dm)
+{
+ int i, count = *(u8 *)(dm + 1);
+ struct dmi_device *dev;
+
+ for (i = 1; i <= count; i++) {
+ dev = dmi_alloc(sizeof(*dev));
+ if (!dev) {
+ printk(KERN_ERR
+ "dmi_save_oem_strings_devices: out of memory.\n");
+ break;
+ }
+
+ dev->type = DMI_DEV_TYPE_OEM_STRING;
+ dev->name = dmi_string(dm, i);
+ dev->device_data = NULL;
list_add(&dev->list, &dmi_devices);
}
@@ -181,6 +201,9 @@ static void __init dmi_decode(struct dmi_header *dm)
case 10: /* Onboard Devices Information */
dmi_save_devices(dm);
break;
+ case 11: /* OEM Strings */
+ dmi_save_oem_strings_devices(dm);
+ break;
case 38: /* IPMI Device Information */
dmi_save_ipmi_device(dm);
}