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generic: routerboot sysfs: add support for soft_config

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This driver exposes the data encoded in the "soft_config" flash segment
of MikroTik RouterBOARDs devices. It presents the data in a sysfs folder
named "soft_config" through a set of human-and-machine-parseable
attributes. Changes can be discarded by writing 0 to the 'commit'
attribute, or they can be committed to flash storage by writing 1.

This driver does not reuse any of the existing code previously found in
the "rbcfg" utility and makes this utility obsolete by providing a clean
sysfs interface.

Like "rbcfg", this driver requires 4K_SECTORS support since the flash
partition in which these parameters are stored is typically 4KB in size.

Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Tested-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
This commit is contained in:
Thibaut VARÈNE
2020-05-13 22:12:41 +02:00
committed by Koen Vandeputte
parent dac18f66fb
commit f36e710e2d
6 changed files with 711 additions and 2 deletions
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3
target/linux/generic/files/drivers/platform/mikrotik/routerboot.h
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@@ -28,6 +28,9 @@ int routerboot_rle_decode(const u8 *in, size_t inlen, u8 *out, size_t *outlen);
int __init rb_hardconfig_init(struct kobject *rb_kobj);
void __exit rb_hardconfig_exit(void);
int __init rb_softconfig_init(struct kobject *rb_kobj);
void __exit rb_softconfig_exit(void);
ssize_t routerboot_tag_show_string(const u8 *pld, u16 pld_len, char *buf);
#endif /* _ROUTERBOOT_H_ */