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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2016-09-22 09:38:17 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-09-22 09:42:02 +0200 |
| commit | 0f5b72a110b1267e7b101a60b7df7f2ff2985cf6 (patch) | |
| tree | 1d82f571e30878f54d80df24751a77b5679730d0 | |
| parent | 85dccb92982450cacc0d7dd393f16778388582a6 (diff) | |
| download | barebox-0f5b72a110b1267e7b101a60b7df7f2ff2985cf6.tar.gz barebox-0f5b72a110b1267e7b101a60b7df7f2ff2985cf6.tar.xz | |
mtd: ubi: introduce barebox specific ioctl to get ubi_num
Code wishing to manipulate ubi devices from outside the ubi
layer needs the ubi_num as reference. Add an ioctl to get
the ubi_num from a filedescriptor.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/mtd/ubi/barebox.c | 3 | ||||
| -rw-r--r-- | include/mtd/ubi-user.h | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/barebox.c b/drivers/mtd/ubi/barebox.c index 13c2a47afc..cb9223ebab 100644 --- a/drivers/mtd/ubi/barebox.c +++ b/drivers/mtd/ubi/barebox.c @@ -299,6 +299,9 @@ static int ubi_cdev_ioctl(struct cdev *cdev, int cmd, void *buf) if (!req->bytes) req->bytes = (__s64)ubi->avail_pebs * ubi->leb_size; return ubi_create_volume(ubi, req); + case UBI_IOCGETUBINUM: + *(u32 *)buf = ubi->ubi_num; + break; }; return 0; diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h index 8c02f96e4c..9425533d19 100644 --- a/include/mtd/ubi-user.h +++ b/include/mtd/ubi-user.h @@ -161,6 +161,8 @@ /* Re-name volumes */ #define UBI_IOCRNVOL _IOW(UBI_IOC_MAGIC, 3, struct ubi_rnvol_req) +#define UBI_IOCGETUBINUM _IOR(UBI_IOC_MAGIC, 32, __u32) + /* ioctl commands of the UBI control character device */ #define UBI_CTRL_IOC_MAGIC 'o' |