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| author | Bartlomiej Sieka <tur@semihalf.com> | 2006-08-03 23:20:13 +0200 |
|---|---|---|
| committer | Bartlomiej Sieka <tur@semihalf.com> | 2006-08-03 23:20:13 +0200 |
| commit | e51aae382979dd838cd5d4027bb21072b7f03a20 (patch) | |
| tree | 09a2d64cb23c360373fb06a2b6d0b752431e188f /common/cmd_usb.c | |
| parent | 7455af41d19d5e0194e23f3b06f1bf64e3430d62 (diff) | |
| download | u-boot-e51aae382979dd838cd5d4027bb21072b7f03a20.tar.gz | |
Prevent USB commands from working when USB is stopped.
Diffstat (limited to 'common/cmd_usb.c')
| -rw-r--r-- | common/cmd_usb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/common/cmd_usb.c b/common/cmd_usb.c index fcc66621a3..28c05aa20e 100644 --- a/common/cmd_usb.c +++ b/common/cmd_usb.c @@ -444,6 +444,7 @@ int do_usb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) int i; struct usb_device *dev = NULL; + extern char usb_started; #ifdef CONFIG_USB_STORAGE block_dev_desc_t *stor_dev; #endif @@ -477,6 +478,10 @@ int do_usb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) usb_stop(); return 0; } + if (!usb_started) { + printf("USB is stopped. Please issue 'usb start' first.\n"); + return 1; + } if (strncmp(argv[1],"tree",4) == 0) { printf("\nDevice Tree:\n"); usb_show_tree(usb_get_dev_index(0)); |