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The MegaRAID driver's common management module (megaraid_mm.c) creates a char device used by the management tool "megarc" from LSI Logic (and possibly other management tools). In 2.6 with udev, this device doesn't get created because it is not registered in sysfs. I first fixed this by registering a class "megaraid_mm", but realized that this should probably be moved to misc devices, instead of taking up a char major. This is because only 1 device is used, even if there are multiple adapters - the minor is never used (the adapter info is in the ioctl block sent to the driver, not detected based on the minor number as one might think). So it is a complete waste to have an entire major taken by this. So it now uses a misc device which I named "megadev0" (the name that megarc expects), and has a dynamic minor (previoulsy a dynamic major was used). I have tested this on my own system with the megarc tool, and it works just as fine as before (only now the device gets created correctly by udev). Acked-by: "Patro, Sumant" <Sumant.Patro@lsi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> |
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| .. | ||
| Kconfig.megaraid | ||
| Makefile | ||
| mbox_defs.h | ||
| mega_common.h | ||
| megaraid_ioctl.h | ||
| megaraid_mbox.c | ||
| megaraid_mbox.h | ||
| megaraid_mm.c | ||
| megaraid_mm.h | ||
| megaraid_sas.c | ||
| megaraid_sas.h | ||