From 8c6004568f7f0cb98c35fb86a193b502278f650f Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Mon, 5 May 2014 10:40:18 -0600
Subject: [PATCH] ums: allow the user to specify the device type
Allow an optional devtype parameter to the ums command, which specifies
the type of the device to be exported. This could allow exporting a SATA
or even another USB device.
Cc: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
---
common/cmd_usb_mass_storage.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c
index 5e0211683c8..2c879ea0837 100644
--- a/common/cmd_usb_mass_storage.c
+++ b/common/cmd_usb_mass_storage.c
@@ -77,8 +77,13 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
return CMD_RET_USAGE;
usb_controller = argv[1];
- devtype = "mmc";
- devnum = argv[2];
+ if (argc >= 4) {
+ devtype = argv[2];
+ devnum = argv[3];
+ } else {
+ devtype = "mmc";
+ devnum = argv[2];
+ }
ums = ums_init(devtype, devnum);
if (!ums)
@@ -152,7 +157,8 @@ exit:
return CMD_RET_SUCCESS;
}
-U_BOOT_CMD(ums, CONFIG_SYS_MAXARGS, 1, do_usb_mass_storage,
+U_BOOT_CMD(ums, 4, 1, do_usb_mass_storage,
"Use the UMS [User Mass Storage]",
- "ums <USB_controller> <mmc_dev> e.g. ums 0 0"
+ "ums <USB_controller> [<devtype>] <devnum> e.g. ums 0 mmc 0\n"
+ " devtype defaults to mmc"
);
--
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