diff options
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/cpu-freq/user-guide.txt | 16 | ||||
-rw-r--r-- | Documentation/filesystems/sysfs-pci.txt | 13 | ||||
-rw-r--r-- | Documentation/filesystems/ubifs.txt | 7 |
3 files changed, 12 insertions, 24 deletions
diff --git a/Documentation/cpu-freq/user-guide.txt b/Documentation/cpu-freq/user-guide.txt index e3443ddcfb89..917918f84fc7 100644 --- a/Documentation/cpu-freq/user-guide.txt +++ b/Documentation/cpu-freq/user-guide.txt | |||
@@ -195,19 +195,3 @@ scaling_setspeed. By "echoing" a new frequency into this | |||
195 | you can change the speed of the CPU, | 195 | you can change the speed of the CPU, |
196 | but only within the limits of | 196 | but only within the limits of |
197 | scaling_min_freq and scaling_max_freq. | 197 | scaling_min_freq and scaling_max_freq. |
198 | |||
199 | |||
200 | 3.2 Deprecated Interfaces | ||
201 | ------------------------- | ||
202 | |||
203 | Depending on your kernel configuration, you might find the following | ||
204 | cpufreq-related files: | ||
205 | /proc/cpufreq | ||
206 | /proc/sys/cpu/*/speed | ||
207 | /proc/sys/cpu/*/speed-min | ||
208 | /proc/sys/cpu/*/speed-max | ||
209 | |||
210 | These are files for deprecated interfaces to cpufreq, which offer far | ||
211 | less functionality. Because of this, these interfaces aren't described | ||
212 | here. | ||
213 | |||
diff --git a/Documentation/filesystems/sysfs-pci.txt b/Documentation/filesystems/sysfs-pci.txt index 68ef48839c04..9f8740ca3f3b 100644 --- a/Documentation/filesystems/sysfs-pci.txt +++ b/Documentation/filesystems/sysfs-pci.txt | |||
@@ -9,6 +9,7 @@ that support it. For example, a given bus might look like this: | |||
9 | | |-- class | 9 | | |-- class |
10 | | |-- config | 10 | | |-- config |
11 | | |-- device | 11 | | |-- device |
12 | | |-- enable | ||
12 | | |-- irq | 13 | | |-- irq |
13 | | |-- local_cpus | 14 | | |-- local_cpus |
14 | | |-- resource | 15 | | |-- resource |
@@ -32,6 +33,7 @@ files, each with their own function. | |||
32 | class PCI class (ascii, ro) | 33 | class PCI class (ascii, ro) |
33 | config PCI config space (binary, rw) | 34 | config PCI config space (binary, rw) |
34 | device PCI device (ascii, ro) | 35 | device PCI device (ascii, ro) |
36 | enable Whether the device is enabled (ascii, rw) | ||
35 | irq IRQ number (ascii, ro) | 37 | irq IRQ number (ascii, ro) |
36 | local_cpus nearby CPU mask (cpumask, ro) | 38 | local_cpus nearby CPU mask (cpumask, ro) |
37 | resource PCI resource host addresses (ascii, ro) | 39 | resource PCI resource host addresses (ascii, ro) |
@@ -57,10 +59,19 @@ used to do actual device programming from userspace. Note that some platforms | |||
57 | don't support mmapping of certain resources, so be sure to check the return | 59 | don't support mmapping of certain resources, so be sure to check the return |
58 | value from any attempted mmap. | 60 | value from any attempted mmap. |
59 | 61 | ||
62 | The 'enable' file provides a counter that indicates how many times the device | ||
63 | has been enabled. If the 'enable' file currently returns '4', and a '1' is | ||
64 | echoed into it, it will then return '5'. Echoing a '0' into it will decrease | ||
65 | the count. Even when it returns to 0, though, some of the initialisation | ||
66 | may not be reversed. | ||
67 | |||
60 | The 'rom' file is special in that it provides read-only access to the device's | 68 | The 'rom' file is special in that it provides read-only access to the device's |
61 | ROM file, if available. It's disabled by default, however, so applications | 69 | ROM file, if available. It's disabled by default, however, so applications |
62 | should write the string "1" to the file to enable it before attempting a read | 70 | should write the string "1" to the file to enable it before attempting a read |
63 | call, and disable it following the access by writing "0" to the file. | 71 | call, and disable it following the access by writing "0" to the file. Note |
72 | that the device must be enabled for a rom read to return data succesfully. | ||
73 | In the event a driver is not bound to the device, it can be enabled using the | ||
74 | 'enable' file, documented above. | ||
64 | 75 | ||
65 | Accessing legacy resources through sysfs | 76 | Accessing legacy resources through sysfs |
66 | ---------------------------------------- | 77 | ---------------------------------------- |
diff --git a/Documentation/filesystems/ubifs.txt b/Documentation/filesystems/ubifs.txt index 84da2a4ba25a..12fedb7834c6 100644 --- a/Documentation/filesystems/ubifs.txt +++ b/Documentation/filesystems/ubifs.txt | |||
@@ -79,13 +79,6 @@ Mount options | |||
79 | 79 | ||
80 | (*) == default. | 80 | (*) == default. |
81 | 81 | ||
82 | norm_unmount (*) commit on unmount; the journal is committed | ||
83 | when the file-system is unmounted so that the | ||
84 | next mount does not have to replay the journal | ||
85 | and it becomes very fast; | ||
86 | fast_unmount do not commit on unmount; this option makes | ||
87 | unmount faster, but the next mount slower | ||
88 | because of the need to replay the journal. | ||
89 | bulk_read read more in one go to take advantage of flash | 82 | bulk_read read more in one go to take advantage of flash |
90 | media that read faster sequentially | 83 | media that read faster sequentially |
91 | no_bulk_read (*) do not bulk-read | 84 | no_bulk_read (*) do not bulk-read |