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Diffstat (limited to 'Documentation/firmware_class/README')
-rw-r--r-- | Documentation/firmware_class/README | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/Documentation/firmware_class/README b/Documentation/firmware_class/README index 43e836c07ae8..e9cc8bb26f7d 100644 --- a/Documentation/firmware_class/README +++ b/Documentation/firmware_class/README | |||
@@ -105,20 +105,3 @@ | |||
105 | on the setup, so I think that the choice on what firmware to make | 105 | on the setup, so I think that the choice on what firmware to make |
106 | persistent should be left to userspace. | 106 | persistent should be left to userspace. |
107 | 107 | ||
108 | - Why register_firmware()+__init can be useful: | ||
109 | - For boot devices needing firmware. | ||
110 | - To make the transition easier: | ||
111 | The firmware can be declared __init and register_firmware() | ||
112 | called on module_init. Then the firmware is warranted to be | ||
113 | there even if "firmware hotplug userspace" is not there yet or | ||
114 | it doesn't yet provide the needed firmware. | ||
115 | Once the firmware is widely available in userspace, it can be | ||
116 | removed from the kernel. Or made optional (CONFIG_.*_FIRMWARE). | ||
117 | |||
118 | In either case, if firmware hotplug support is there, it can move the | ||
119 | firmware out of kernel memory into the real filesystem for later | ||
120 | usage. | ||
121 | |||
122 | Note: If persistence is implemented on top of initramfs, | ||
123 | register_firmware() may not be appropriate. | ||
124 | |||