diff options
author | David Vrabel <david.vrabel@csr.com> | 2008-10-20 11:07:19 -0400 |
---|---|---|
committer | David Vrabel <david.vrabel@csr.com> | 2008-10-20 11:07:19 -0400 |
commit | 61e0e79ee3c609eb34edf2fe023708cba6a79b1f (patch) | |
tree | 663deacffd4071120dc9badb70428fe5f124c7b9 /Documentation/usb | |
parent | c15895ef30c2c03e99802951787183039a349d32 (diff) | |
parent | 0cfd81031a26717fe14380d18275f8e217571615 (diff) |
Merge branch 'master' into for-upstream
Conflicts:
Documentation/ABI/testing/sysfs-bus-usb
drivers/Makefile
Diffstat (limited to 'Documentation/usb')
-rw-r--r-- | Documentation/usb/anchors.txt | 17 | ||||
-rw-r--r-- | Documentation/usb/misc_usbsevseg.txt | 46 | ||||
-rw-r--r-- | Documentation/usb/power-management.txt | 8 |
3 files changed, 67 insertions, 4 deletions
diff --git a/Documentation/usb/anchors.txt b/Documentation/usb/anchors.txt index 5e6b64c20d25..6f24f566955a 100644 --- a/Documentation/usb/anchors.txt +++ b/Documentation/usb/anchors.txt | |||
@@ -52,6 +52,11 @@ Therefore no guarantee is made that the URBs have been unlinked when | |||
52 | the call returns. They may be unlinked later but will be unlinked in | 52 | the call returns. They may be unlinked later but will be unlinked in |
53 | finite time. | 53 | finite time. |
54 | 54 | ||
55 | usb_scuttle_anchored_urbs() | ||
56 | --------------------------- | ||
57 | |||
58 | All URBs of an anchor are unanchored en masse. | ||
59 | |||
55 | usb_wait_anchor_empty_timeout() | 60 | usb_wait_anchor_empty_timeout() |
56 | ------------------------------- | 61 | ------------------------------- |
57 | 62 | ||
@@ -59,4 +64,16 @@ This function waits for all URBs associated with an anchor to finish | |||
59 | or a timeout, whichever comes first. Its return value will tell you | 64 | or a timeout, whichever comes first. Its return value will tell you |
60 | whether the timeout was reached. | 65 | whether the timeout was reached. |
61 | 66 | ||
67 | usb_anchor_empty() | ||
68 | ------------------ | ||
69 | |||
70 | Returns true if no URBs are associated with an anchor. Locking | ||
71 | is the caller's responsibility. | ||
72 | |||
73 | usb_get_from_anchor() | ||
74 | --------------------- | ||
62 | 75 | ||
76 | Returns the oldest anchored URB of an anchor. The URB is unanchored | ||
77 | and returned with a reference. As you may mix URBs to several | ||
78 | destinations in one anchor you have no guarantee the chronologically | ||
79 | first submitted URB is returned. \ No newline at end of file | ||
diff --git a/Documentation/usb/misc_usbsevseg.txt b/Documentation/usb/misc_usbsevseg.txt new file mode 100644 index 000000000000..0f6be4f9930b --- /dev/null +++ b/Documentation/usb/misc_usbsevseg.txt | |||
@@ -0,0 +1,46 @@ | |||
1 | USB 7-Segment Numeric Display | ||
2 | Manufactured by Delcom Engineering | ||
3 | |||
4 | Device Information | ||
5 | ------------------ | ||
6 | USB VENDOR_ID 0x0fc5 | ||
7 | USB PRODUCT_ID 0x1227 | ||
8 | Both the 6 character and 8 character displays have PRODUCT_ID, | ||
9 | and according to Delcom Engineering no queryable information | ||
10 | can be obtained from the device to tell them apart. | ||
11 | |||
12 | Device Modes | ||
13 | ------------ | ||
14 | By default, the driver assumes the display is only 6 characters | ||
15 | The mode for 6 characters is: | ||
16 | MSB 0x06; LSB 0x3f | ||
17 | For the 8 character display: | ||
18 | MSB 0x08; LSB 0xff | ||
19 | The device can accept "text" either in raw, hex, or ascii textmode. | ||
20 | raw controls each segment manually, | ||
21 | hex expects a value between 0-15 per character, | ||
22 | ascii expects a value between '0'-'9' and 'A'-'F'. | ||
23 | The default is ascii. | ||
24 | |||
25 | Device Operation | ||
26 | ---------------- | ||
27 | 1. Turn on the device: | ||
28 | echo 1 > /sys/bus/usb/.../powered | ||
29 | 2. Set the device's mode: | ||
30 | echo $mode_msb > /sys/bus/usb/.../mode_msb | ||
31 | echo $mode_lsb > /sys/bus/usb/.../mode_lsb | ||
32 | 3. Set the textmode: | ||
33 | echo $textmode > /sys/bus/usb/.../textmode | ||
34 | 4. set the text (for example): | ||
35 | echo "123ABC" > /sys/bus/usb/.../text (ascii) | ||
36 | echo "A1B2" > /sys/bus/usb/.../text (ascii) | ||
37 | echo -ne "\x01\x02\x03" > /sys/bus/usb/.../text (hex) | ||
38 | 5. Set the decimal places. | ||
39 | The device has either 6 or 8 decimal points. | ||
40 | to set the nth decimal place calculate 10 ** n | ||
41 | and echo it in to /sys/bus/usb/.../decimals | ||
42 | To set multiple decimals points sum up each power. | ||
43 | For example, to set the 0th and 3rd decimal place | ||
44 | echo 1001 > /sys/bus/usb/.../decimals | ||
45 | |||
46 | |||
diff --git a/Documentation/usb/power-management.txt b/Documentation/usb/power-management.txt index 9d31140e3f5b..e48ea1d51010 100644 --- a/Documentation/usb/power-management.txt +++ b/Documentation/usb/power-management.txt | |||
@@ -350,12 +350,12 @@ without holding the mutex. | |||
350 | 350 | ||
351 | There also are a couple of utility routines drivers can use: | 351 | There also are a couple of utility routines drivers can use: |
352 | 352 | ||
353 | usb_autopm_enable() sets pm_usage_cnt to 1 and then calls | 353 | usb_autopm_enable() sets pm_usage_cnt to 0 and then calls |
354 | usb_autopm_set_interface(), which will attempt an autoresume. | ||
355 | |||
356 | usb_autopm_disable() sets pm_usage_cnt to 0 and then calls | ||
357 | usb_autopm_set_interface(), which will attempt an autosuspend. | 354 | usb_autopm_set_interface(), which will attempt an autosuspend. |
358 | 355 | ||
356 | usb_autopm_disable() sets pm_usage_cnt to 1 and then calls | ||
357 | usb_autopm_set_interface(), which will attempt an autoresume. | ||
358 | |||
359 | The conventional usage pattern is that a driver calls | 359 | The conventional usage pattern is that a driver calls |
360 | usb_autopm_get_interface() in its open routine and | 360 | usb_autopm_get_interface() in its open routine and |
361 | usb_autopm_put_interface() in its close or release routine. But | 361 | usb_autopm_put_interface() in its close or release routine. But |