diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/Kconfig | 28 |
1 files changed, 5 insertions, 23 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index bdc87907d6a1..698db8549686 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -86,10 +86,9 @@ config FW_LOADER require userspace firmware loading support, but a module built out-of-tree does. -config FIRMWARE_IN_KERNEL - bool "Include in-kernel firmware blobs in kernel binary" +config EXTRA_FIRMWARE + string "External firmware blobs to build into the kernel binary" depends on FW_LOADER - default y help Various drivers in the kernel source tree may require firmware, which is generally available in your distribution's linux-firmware @@ -99,23 +98,6 @@ config FIRMWARE_IN_KERNEL /lib/firmware/ on your system, so they can be loaded by userspace helpers on request. - Enabling this option will build each required firmware blob - specified by EXTRA_FIRMWARE into the kernel directly, where - request_firmware() will find them without having to call out to - userspace. This may be useful if your root file system requires a - device that uses such firmware and you do not wish to use an - initrd. - - This single option controls the inclusion of firmware for - every driver that uses request_firmware(), which avoids a - proliferation of 'Include firmware for xxx device' options. - - Say 'N' and let firmware be loaded from userspace. - -config EXTRA_FIRMWARE - string "External firmware blobs to build into the kernel binary" - depends on FW_LOADER - help This option allows firmware to be built into the kernel for the case where the user either cannot or doesn't want to provide it from userspace at runtime (for example, when the firmware in question is @@ -126,11 +108,11 @@ config EXTRA_FIRMWARE firmware files -- the same names that appear in MODULE_FIRMWARE() and request_firmware() in the source. These files should exist under the directory specified by the EXTRA_FIRMWARE_DIR option, which is - by default the firmware subdirectory of the kernel source tree. + /lib/firmware by default. For example, you might set CONFIG_EXTRA_FIRMWARE="usb8388.bin", copy - the usb8388.bin file into the firmware directory, and build the kernel. - Then any request_firmware("usb8388.bin") will be satisfied internally + the usb8388.bin file into /lib/firmware, and build the kernel. Then + any request_firmware("usb8388.bin") will be satisfied internally without needing to call out to userspace. WARNING: If you include additional firmware files into your binary |