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add example usage to hello command

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This commit is contained in:
BVK Chaitanya 2010-06-10 12:12:03 +05:30
parent 3db1c9eee4
commit 28be0e94db
34 changed files with 220 additions and 102 deletions
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8
commands/memrw.c
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@ -35,7 +35,7 @@ static const struct grub_arg_option options[] =
static grub_err_t
grub_cmd_read (grub_extcmd_t cmd, int argc, char **argv)
grub_cmd_read (grub_extcmd_context_t ctxt, int argc, char **argv)
{
grub_target_addr_t addr;
grub_uint32_t value = 0;
@ -45,7 +45,7 @@ grub_cmd_read (grub_extcmd_t cmd, int argc, char **argv)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid number of arguments");
addr = grub_strtoul (argv[0], 0, 0);
switch (cmd->cmd->name[sizeof ("read_") - 1])
switch (ctxt->extcmd->cmd->name[sizeof ("read_") - 1])
{
case 'd':
value = *((volatile grub_uint32_t *) addr);
@ -60,10 +60,10 @@ grub_cmd_read (grub_extcmd_t cmd, int argc, char **argv)
break;
}
if (cmd->state[0].set)
if (ctxt->state[0].set)
{
grub_snprintf (buf, sizeof (buf), "%x", value);
grub_env_set (cmd->state[0].arg, buf);
grub_env_set (ctxt->state[0].arg, buf);
}
else
grub_printf ("0x%x\n", value);