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Merge branch 'master' into for-upstream
Conflicts: Documentation/ABI/testing/sysfs-bus-usb drivers/Makefile
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61e0e79ee3
6522 changed files with 533196 additions and 168672 deletions
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@ -52,6 +52,11 @@ Therefore no guarantee is made that the URBs have been unlinked when
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the call returns. They may be unlinked later but will be unlinked in
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finite time.
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usb_scuttle_anchored_urbs()
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---------------------------
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All URBs of an anchor are unanchored en masse.
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usb_wait_anchor_empty_timeout()
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-------------------------------
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@ -59,4 +64,16 @@ This function waits for all URBs associated with an anchor to finish
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or a timeout, whichever comes first. Its return value will tell you
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whether the timeout was reached.
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usb_anchor_empty()
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------------------
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Returns true if no URBs are associated with an anchor. Locking
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is the caller's responsibility.
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usb_get_from_anchor()
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---------------------
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Returns the oldest anchored URB of an anchor. The URB is unanchored
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and returned with a reference. As you may mix URBs to several
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destinations in one anchor you have no guarantee the chronologically
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first submitted URB is returned.
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46
Documentation/usb/misc_usbsevseg.txt
Normal file
46
Documentation/usb/misc_usbsevseg.txt
Normal file
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@ -0,0 +1,46 @@
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USB 7-Segment Numeric Display
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Manufactured by Delcom Engineering
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Device Information
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------------------
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USB VENDOR_ID 0x0fc5
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USB PRODUCT_ID 0x1227
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Both the 6 character and 8 character displays have PRODUCT_ID,
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and according to Delcom Engineering no queryable information
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can be obtained from the device to tell them apart.
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Device Modes
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------------
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By default, the driver assumes the display is only 6 characters
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The mode for 6 characters is:
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MSB 0x06; LSB 0x3f
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For the 8 character display:
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MSB 0x08; LSB 0xff
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The device can accept "text" either in raw, hex, or ascii textmode.
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raw controls each segment manually,
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hex expects a value between 0-15 per character,
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ascii expects a value between '0'-'9' and 'A'-'F'.
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The default is ascii.
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Device Operation
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----------------
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1. Turn on the device:
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echo 1 > /sys/bus/usb/.../powered
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2. Set the device's mode:
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echo $mode_msb > /sys/bus/usb/.../mode_msb
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echo $mode_lsb > /sys/bus/usb/.../mode_lsb
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3. Set the textmode:
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echo $textmode > /sys/bus/usb/.../textmode
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4. set the text (for example):
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echo "123ABC" > /sys/bus/usb/.../text (ascii)
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echo "A1B2" > /sys/bus/usb/.../text (ascii)
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echo -ne "\x01\x02\x03" > /sys/bus/usb/.../text (hex)
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5. Set the decimal places.
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The device has either 6 or 8 decimal points.
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to set the nth decimal place calculate 10 ** n
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and echo it in to /sys/bus/usb/.../decimals
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To set multiple decimals points sum up each power.
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For example, to set the 0th and 3rd decimal place
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echo 1001 > /sys/bus/usb/.../decimals
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@ -350,12 +350,12 @@ without holding the mutex.
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There also are a couple of utility routines drivers can use:
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usb_autopm_enable() sets pm_usage_cnt to 1 and then calls
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usb_autopm_set_interface(), which will attempt an autoresume.
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usb_autopm_disable() sets pm_usage_cnt to 0 and then calls
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usb_autopm_enable() sets pm_usage_cnt to 0 and then calls
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usb_autopm_set_interface(), which will attempt an autosuspend.
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usb_autopm_disable() sets pm_usage_cnt to 1 and then calls
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usb_autopm_set_interface(), which will attempt an autoresume.
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The conventional usage pattern is that a driver calls
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usb_autopm_get_interface() in its open routine and
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usb_autopm_put_interface() in its close or release routine. But
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