diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 02:06:24 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 02:06:24 -0400 |
| commit | f0deb97ab13ad1f89cd0993f7339655d59788405 (patch) | |
| tree | 41572e643cb4983115707ae330b5896ae76e1ea1 /drivers/base/Kconfig | |
| parent | 184475029a724b6b900d88fc3a5f462a6107d5af (diff) | |
| parent | 21d541aa19e90752232bf6c43002f019f204f988 (diff) | |
Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
updated Documentation/ja_JP/SubmittingPatches
debugfs: add documentation for debugfs_create_x64
uio: uio_pdrv_genirq: Add OF support
firmware: gsmi: remove sysfs entries when unload the module
Documentation/zh_CN: Fix messy code file email-clients.txt
driver core: add more help description for "path to uevent helper"
driver-core: modify FIRMWARE_IN_KERNEL help message
driver-core: Kconfig grammar corrections in firmware configuration
DOCUMENTATION: Replace create_device() with device_create().
DOCUMENTATION: Update overview.txt in Doc/driver-model.
pti: pti_tty_install documentation mispelling.
Diffstat (limited to 'drivers/base/Kconfig')
| -rw-r--r-- | drivers/base/Kconfig | 64 |
1 files changed, 34 insertions, 30 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index b605d01f5d4..21cf46f4524 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig | |||
| @@ -16,6 +16,11 @@ config UEVENT_HELPER_PATH | |||
| 16 | that it creates a high system load, or on smaller systems | 16 | that it creates a high system load, or on smaller systems |
| 17 | it is known to create out-of-memory situations during bootup. | 17 | it is known to create out-of-memory situations during bootup. |
| 18 | 18 | ||
| 19 | To disable user space helper program execution at early boot | ||
| 20 | time specify an empty string here. This setting can be altered | ||
| 21 | via /proc/sys/kernel/hotplug or via /sys/kernel/uevent_helper | ||
| 22 | later at runtime. | ||
| 23 | |||
| 19 | config DEVTMPFS | 24 | config DEVTMPFS |
| 20 | bool "Maintain a devtmpfs filesystem to mount at /dev" | 25 | bool "Maintain a devtmpfs filesystem to mount at /dev" |
| 21 | depends on HOTPLUG | 26 | depends on HOTPLUG |
| @@ -65,17 +70,17 @@ config PREVENT_FIRMWARE_BUILD | |||
| 65 | default y | 70 | default y |
| 66 | help | 71 | help |
| 67 | Say yes to avoid building firmware. Firmware is usually shipped | 72 | Say yes to avoid building firmware. Firmware is usually shipped |
| 68 | with the driver, and only when updating the firmware a rebuild | 73 | with the driver and only when updating the firmware should a |
| 69 | should be made. | 74 | rebuild be made. |
| 70 | If unsure say Y here. | 75 | If unsure, say Y here. |
| 71 | 76 | ||
| 72 | config FW_LOADER | 77 | config FW_LOADER |
| 73 | tristate "Userspace firmware loading support" if EXPERT | 78 | tristate "Userspace firmware loading support" if EXPERT |
| 74 | default y | 79 | default y |
| 75 | ---help--- | 80 | ---help--- |
| 76 | This option is provided for the case where no in-kernel-tree modules | 81 | This option is provided for the case where none of the in-tree modules |
| 77 | require userspace firmware loading support, but a module built outside | 82 | require userspace firmware loading support, but a module built |
| 78 | the kernel tree does. | 83 | out-of-tree does. |
| 79 | 84 | ||
| 80 | config FIRMWARE_IN_KERNEL | 85 | config FIRMWARE_IN_KERNEL |
| 81 | bool "Include in-kernel firmware blobs in kernel binary" | 86 | bool "Include in-kernel firmware blobs in kernel binary" |
| @@ -83,22 +88,22 @@ config FIRMWARE_IN_KERNEL | |||
| 83 | default y | 88 | default y |
| 84 | help | 89 | help |
| 85 | The kernel source tree includes a number of firmware 'blobs' | 90 | The kernel source tree includes a number of firmware 'blobs' |
| 86 | which are used by various drivers. The recommended way to | 91 | that are used by various drivers. The recommended way to |
| 87 | use these is to run "make firmware_install" and to copy the | 92 | use these is to run "make firmware_install", which, after |
| 88 | resulting binary files created in usr/lib/firmware directory | 93 | converting ihex files to binary, copies all of the needed |
| 89 | of the kernel tree to the /lib/firmware on your system so | 94 | binary files in firmware/ to /lib/firmware/ on your system so |
| 90 | that they can be loaded by userspace helpers on request. | 95 | that they can be loaded by userspace helpers on request. |
| 91 | 96 | ||
| 92 | Enabling this option will build each required firmware blob | 97 | Enabling this option will build each required firmware blob |
| 93 | into the kernel directly, where request_firmware() will find | 98 | into the kernel directly, where request_firmware() will find |
| 94 | them without having to call out to userspace. This may be | 99 | them without having to call out to userspace. This may be |
| 95 | useful if your root file system requires a device which uses | 100 | useful if your root file system requires a device that uses |
| 96 | such firmware, and do not wish to use an initrd. | 101 | such firmware and do not wish to use an initrd. |
| 97 | 102 | ||
| 98 | This single option controls the inclusion of firmware for | 103 | This single option controls the inclusion of firmware for |
| 99 | every driver which uses request_firmware() and ships its | 104 | every driver that uses request_firmware() and ships its |
| 100 | firmware in the kernel source tree, to avoid a proliferation | 105 | firmware in the kernel source tree, which avoids a |
| 101 | of 'Include firmware for xxx device' options. | 106 | proliferation of 'Include firmware for xxx device' options. |
| 102 | 107 | ||
| 103 | Say 'N' and let firmware be loaded from userspace. | 108 | Say 'N' and let firmware be loaded from userspace. |
| 104 | 109 | ||
| @@ -106,27 +111,27 @@ config EXTRA_FIRMWARE | |||
| 106 | string "External firmware blobs to build into the kernel binary" | 111 | string "External firmware blobs to build into the kernel binary" |
| 107 | depends on FW_LOADER | 112 | depends on FW_LOADER |
| 108 | help | 113 | help |
| 109 | This option allows firmware to be built into the kernel, for the | 114 | This option allows firmware to be built into the kernel for the case |
| 110 | cases where the user either cannot or doesn't want to provide it from | 115 | where the user either cannot or doesn't want to provide it from |
| 111 | userspace at runtime (for example, when the firmware in question is | 116 | userspace at runtime (for example, when the firmware in question is |
| 112 | required for accessing the boot device, and the user doesn't want to | 117 | required for accessing the boot device, and the user doesn't want to |
| 113 | use an initrd). | 118 | use an initrd). |
| 114 | 119 | ||
| 115 | This option is a string, and takes the (space-separated) names of the | 120 | This option is a string and takes the (space-separated) names of the |
| 116 | firmware files -- the same names which appear in MODULE_FIRMWARE() | 121 | firmware files -- the same names that appear in MODULE_FIRMWARE() |
| 117 | and request_firmware() in the source. These files should exist under | 122 | and request_firmware() in the source. These files should exist under |
| 118 | the directory specified by the EXTRA_FIRMWARE_DIR option, which is | 123 | the directory specified by the EXTRA_FIRMWARE_DIR option, which is |
| 119 | by default the firmware/ subdirectory of the kernel source tree. | 124 | by default the firmware subdirectory of the kernel source tree. |
| 120 | 125 | ||
| 121 | So, for example, you might set CONFIG_EXTRA_FIRMWARE="usb8388.bin", | 126 | For example, you might set CONFIG_EXTRA_FIRMWARE="usb8388.bin", copy |
| 122 | copy the usb8388.bin file into the firmware/ directory, and build the | 127 | the usb8388.bin file into the firmware directory, and build the kernel. |
| 123 | kernel. Then any request_firmware("usb8388.bin") will be | 128 | Then any request_firmware("usb8388.bin") will be satisfied internally |
| 124 | satisfied internally without needing to call out to userspace. | 129 | without needing to call out to userspace. |
| 125 | 130 | ||
| 126 | WARNING: If you include additional firmware files into your binary | 131 | WARNING: If you include additional firmware files into your binary |
| 127 | kernel image which are not available under the terms of the GPL, | 132 | kernel image that are not available under the terms of the GPL, |
| 128 | then it may be a violation of the GPL to distribute the resulting | 133 | then it may be a violation of the GPL to distribute the resulting |
| 129 | image -- since it combines both GPL and non-GPL work. You should | 134 | image since it combines both GPL and non-GPL work. You should |
| 130 | consult a lawyer of your own before distributing such an image. | 135 | consult a lawyer of your own before distributing such an image. |
| 131 | 136 | ||
| 132 | config EXTRA_FIRMWARE_DIR | 137 | config EXTRA_FIRMWARE_DIR |
| @@ -136,10 +141,9 @@ config EXTRA_FIRMWARE_DIR | |||
| 136 | help | 141 | help |
| 137 | This option controls the directory in which the kernel build system | 142 | This option controls the directory in which the kernel build system |
| 138 | looks for the firmware files listed in the EXTRA_FIRMWARE option. | 143 | looks for the firmware files listed in the EXTRA_FIRMWARE option. |
| 139 | The default is the firmware/ directory in the kernel source tree, | 144 | The default is firmware/ in the kernel source tree, but by changing |
| 140 | but by changing this option you can point it elsewhere, such as | 145 | this option you can point it elsewhere, such as /lib/firmware/ or |
| 141 | the /lib/firmware/ directory or another separate directory | 146 | some other directory containing the firmware files. |
| 142 | containing firmware files. | ||
| 143 | 147 | ||
| 144 | config DEBUG_DRIVER | 148 | config DEBUG_DRIVER |
| 145 | bool "Driver Core verbose debug messages" | 149 | bool "Driver Core verbose debug messages" |
