1 =================
2 Built-in firmware
3 =================
4
5 Firmware can be built-in to the kernel, this m
6 into vmlinux directly, to enable avoiding havi
7 the filesystem. Instead, firmware can be looke
8 directly. You can enable built-in firmware usi
9 options:
10
11 * CONFIG_EXTRA_FIRMWARE
12 * CONFIG_EXTRA_FIRMWARE_DIR
13
14 There are a few reasons why you might want to
15 into the kernel with CONFIG_EXTRA_FIRMWARE:
16
17 * Speed
18 * Firmware is needed for accessing the boot de
19 want to stuff the firmware into the boot ini
20
21 Even if you have these needs there are a few r
22 able to make use of built-in firmware:
23
24 * Legalese - firmware is non-GPL compatible
25 * Some firmware may be optional
26 * Firmware upgrades are possible, therefore a
27 a complete kernel rebuild.
28 * Some firmware files may be really large in s
29 is an example subsystem which deals with the
30 * The firmware may need to be scraped out from
31 dynamically, an example is calibration data
32 calibration data can be unique per sold devi
33
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