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Prevent USB commands from working when USB is stopped.

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This commit is contained in:
Bartlomiej Sieka 2006-08-03 23:20:13 +02:00
parent 7455af41d1
commit e51aae3829
3 changed files with 12 additions and 0 deletions
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5
common/cmd_usb.c
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@ -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));