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| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2017-10-27 09:05:48 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2017-10-27 10:56:52 +0200 |
| commit | 1bf16188c5922854f384317b7585bc8cd91593b5 (patch) | |
| tree | 89d8335db06e736370d3930ca4eccf8e764b3a87 /drivers/block/efi-block-io.c | |
| parent | c6dc961b7100a6e18988f7bb0d9a12700be90a8f (diff) | |
| download | barebox-1bf16188c5922854f384317b7585bc8cd91593b5.tar.gz barebox-1bf16188c5922854f384317b7585bc8cd91593b5.tar.xz | |
efi-block: detect when the block device is a USB Disk
use usbdisk as a basename
This will be usefull as example when we want to search for a usb disk for
failsafe update or install.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/block/efi-block-io.c')
| -rw-r--r-- | drivers/block/efi-block-io.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/block/efi-block-io.c b/drivers/block/efi-block-io.c index a4d9d3a95d..2bbeb99e69 100644 --- a/drivers/block/efi-block-io.c +++ b/drivers/block/efi-block-io.c @@ -130,6 +130,18 @@ static void efi_bio_print_info(struct efi_bio_priv *priv) media->optimal_transfer_length_granularity); } +static int is_bio_usbdev(struct efi_device *efidev) +{ + int i; + + for (i = 0; i < efidev->num_guids; i++) { + if (!efi_guidcmp(efidev->guids[i], EFI_USB_IO_PROTOCOL_GUID)) + return 1; + } + + return 0; +} + int efi_bio_probe(struct efi_device *efidev) { int ret; @@ -147,7 +159,10 @@ int efi_bio_probe(struct efi_device *efidev) efi_bio_print_info(priv); priv->dev = &efidev->dev; - priv->blk.cdev.name = xasprintf("disk%d", cdev_find_free_index("disk")); + if (is_bio_usbdev(efidev)) + priv->blk.cdev.name = xasprintf("usbdisk%d", cdev_find_free_index("usbdisk")); + else + priv->blk.cdev.name = xasprintf("disk%d", cdev_find_free_index("disk")); priv->blk.blockbits = ffs(media->block_size) - 1; priv->blk.num_blocks = media->last_block + 1; priv->blk.ops = &efi_bio_ops; |