u-boot/include/common.h

273  * env_get() - Look up the value of an environment variable
279  * @varname:	Variable to look up
280  * @return value of variable, or NULL if not found
285  * env_get_f() - Look up the value of an environment variable (early)
291  * @varname:	Variable to look up
292  * @return value of variable, or NULL if not found
297  * env_get_ulong() - Return an environment variable as an integer value
302  * @name:	Variable to look up
310  * env_get_hex() - Return an environment variable as a hex value
313  * prefix). If the environment variable cannot be found, or does not start
316  * @varname:		Variable to decode
322  * Read an environment variable as a boolean
323  * Return -1 if variable does not exist (default to true)
328  * env_set() - set an environment variable
330  * This sets or deletes the value of an environment variable. For setting the
331  * value the variable is created if it does not already exist.
333  * @varname: Variable to adjust
334  * @value: Value to set for the variable, or NULL or "" to delete the variable
340  * env_update() - update sub value of an environment variable
342  * This add/append/replace the sub value of an environment variable.
344  * @varname: Variable to adjust
353  * env_update_extract_subset() - extract subset value from an environment variable
355  * This extract subset value from an environment variable
357  * @varname: Parent Variable where to extract subset value, the subset value
359  * @subset_varname: Variable to save subset value
367  * env_update() - update sub value of an environment variable
369  * This add/append/replace the sub value of an environment variable.
371  * @varname: Variable to adjust
378  * env_exist() - check sub value of an environment variable is exist or not
380  * @varname: Variable to look up
387  * env_delete() - delete sub value of an environment variable
389  * @varname: Variable to look up
397  * env_set_ulong() - set an environment variable to an integer
399  * @varname: Variable to adjust
400  * @value: Value to set for the variable (will be converted to a string)
406  * env_set_hex() - set an environment variable to a hex value
408  * @varname: Variable to adjust
409  * @value: Value to set for the variable (will be converted to a hex string)
415  * env_set_addr - Set an environment variable to an address in hex
417  * @varname:	Environment variable to set