4 files changed, 627 insertions, 16 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index 9734577d1711..11a3c1682cec 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -52,3 +52,36 @@ Description:
                 facility is inherently dangerous, it is disabled by default
                 for all devices except hubs.  For more information, see
                 Documentation/usb/persist.txt.
+
+What:           /sys/bus/usb/device/.../power/connected_duration
+Date:           January 2008
+KernelVersion:  2.6.25
+Contact:        Sarah Sharp <sarah.a.sharp@intel.com>
+Description:
+                If CONFIG_PM and CONFIG_USB_SUSPEND are enabled, then this file
+                is present.  When read, it returns the total time (in msec)
+                that the USB device has been connected to the machine.  This
+                file is read-only.
+Users:
+                PowerTOP <power@bughost.org>
+                http://www.lesswatts.org/projects/powertop/
+
+What:           /sys/bus/usb/device/.../power/active_duration
+Date:           January 2008
+KernelVersion:  2.6.25
+Contact:        Sarah Sharp <sarah.a.sharp@intel.com>
+Description:
+                If CONFIG_PM and CONFIG_USB_SUSPEND are enabled, then this file
+                is present.  When read, it returns the total time (in msec)
+                that the USB device has been active, i.e. not in a suspended
+                state.  This file is read-only.
+
+                Tools can use this file and the connected_duration file to
+                compute the percentage of time that a device has been active.
+                For example,
+                echo $((100 * `cat active_duration` / `cat connected_duration`))
+                will give an integer percentage.  Note that this does not
+                account for counter wrap.
+Users:
+                PowerTOP <power@bughost.org>
+                http://www.lesswatts.org/projects/powertop/
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 181bff005167..a7d9d179131a 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -156,22 +156,6 @@ Who:	Arjan van de Ven <arjan@linux.intel.com>
 
 ---------------------------
 
-What:   USB driver API moves to EXPORT_SYMBOL_GPL
-When:   February 2008
-Files:  include/linux/usb.h, drivers/usb/core/driver.c
-Why:    The USB subsystem has changed a lot over time, and it has been
-        possible to create userspace USB drivers using usbfs/libusb/gadgetfs
-        that operate as fast as the USB bus allows.  Because of this, the USB
-        subsystem will not be allowing closed source kernel drivers to
-        register with it, after this grace period is over.  If anyone needs
-        any help in converting their closed source drivers over to use the
-        userspace filesystems, please contact the
-        linux-usb-devel@lists.sourceforge.net mailing list, and the developers
-        there will be glad to help you out.
-Who:    Greg Kroah-Hartman <gregkh@suse.de>
-
----------------------------
-
 What:   vm_ops.nopage
 When:   Soon, provided in-kernel callers have been converted
 Why:    This interface is replaced by vm_ops.fault, but it has been around
diff --git a/Documentation/usb/gadget_printer.txt b/Documentation/usb/gadget_printer.txt
new file mode 100644
index 000000000000..ad995bf0db41
--- /dev/null
+++ b/Documentation/usb/gadget_printer.txt
@@ -0,0 +1,510 @@
+
+                       Linux USB Printer Gadget Driver
+                                 06/04/2007
+
+              Copyright (C) 2007 Craig W. Nadler <craig@nadler.us>
+
+
+
+GENERAL
+=======
+
+This driver may be used if you are writing printer firmware using Linux as
+the embedded OS. This driver has nothing to do with using a printer with
+your Linux host system.
+
+You will need a USB device controller and a Linux driver for it that accepts
+a gadget / "device class" driver using the Linux USB Gadget API. After the
+USB device controller driver is loaded then load the printer gadget driver.
+This will present a printer interface to the USB Host that your USB Device
+port is connected to.
+
+This driver is structured for printer firmware that runs in user mode. The
+user mode printer firmware will read and write data from the kernel mode
+printer gadget driver using a device file. The printer returns a printer status
+byte when the USB HOST sends a device request to get the printer status.  The
+user space firmware can read or write this status byte using a device file
+/dev/g_printer . Both blocking and non-blocking read/write calls are supported.
+
+
+
+
+HOWTO USE THIS DRIVER
+=====================
+
+To load the USB device controller driver and the printer gadget driver. The
+following example uses the Netchip 2280 USB device controller driver:
+
+modprobe net2280
+modprobe g_printer
+
+
+The follow command line parameter can be used when loading the printer gadget
+(ex: modprobe g_printer idVendor=0x0525 idProduct=0xa4a8 ):
+
+idVendor - This is the Vendor ID used in the device descriptor. The default is
+        the Netchip vendor id 0x0525. YOU MUST CHANGE TO YOUR OWN VENDOR ID
+        BEFORE RELEASING A PRODUCT. If you plan to release a product and don't
+        already have a Vendor ID please see www.usb.org for details on how to
+        get one.
+
+idProduct - This is the Product ID used in the device descriptor. The default
+        is 0xa4a8, you should change this to an ID that's not used by any of
+        your other USB products if you have any. It would be a good idea to
+        start numbering your products starting with say 0x0001.
+
+bcdDevice - This is the version number of your product. It would be a good idea
+        to put your firmware version here.
+
+iManufacturer - A string containing the name of the Vendor.
+
+iProduct - A string containing the Product Name.
+
+iSerialNum - A string containing the Serial Number. This should be changed for
+        each unit of your product.
+
+iPNPstring -  The PNP ID string used for this printer. You will want to set
+        either on the command line or hard code the PNP ID string used for
+        your printer product.
+
+qlen - The number of 8k buffers to use per endpoint. The default is 10, you
+        should tune this for your product. You may also want to tune the
+        size of each buffer for your product.
+
+
+
+
+USING THE EXAMPLE CODE
+======================
+
+This example code talks to stdout, instead of a print engine.
+
+To compile the test code below:
+
+1) save it to a file called prn_example.c
+2) compile the code with the follow command:
+         gcc prn_example.c -o prn_example
+
+
+
+To read printer data from the host to stdout:
+
+        # prn_example -read_data
+
+
+To write printer data from a file (data_file) to the host:
+
+        # cat data_file | prn_example -write_data
+
+
+To get the current printer status for the gadget driver:
+
+        # prn_example -get_status
+
+        Printer status is:
+             Printer is NOT Selected
+             Paper is Out
+             Printer OK
+
+
+To set printer to Selected/On-line:
+
+        # prn_example -selected
+
+
+To set printer to Not Selected/Off-line:
+
+        # prn_example -not_selected
+
+
+To set paper status to paper out:
+
+        # prn_example -paper_out
+
+
+To set paper status to paper loaded:
+
+        # prn_example -paper_loaded
+
+
+To set error status to printer OK:
+
+        # prn_example -no_error
+
+
+To set error status to ERROR:
+
+        # prn_example -error
+
+
+
+
+EXAMPLE CODE
+============
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <linux/poll.h>
+#include <sys/ioctl.h>
+#include <linux/usb/g_printer.h>
+
+#define PRINTER_FILE                    "/dev/g_printer"
+#define BUF_SIZE                        512
+
+
+/*
+ * 'usage()' - Show program usage.
+ */
+
+static void
+usage(const char *option)               /* I - Option string or NULL */
+{
+        if (option) {
+                fprintf(stderr,"prn_example: Unknown option \"%s\"!\n",
+                                option);
+        }
+
+        fputs("\n", stderr);
+        fputs("Usage: prn_example -[options]\n", stderr);
+        fputs("Options:\n", stderr);
+        fputs("\n", stderr);
+        fputs("-get_status    Get the current printer status.\n", stderr);
+        fputs("-selected      Set the selected status to selected.\n", stderr);
+        fputs("-not_selected  Set the selected status to NOT selected.\n",
+                        stderr);
+        fputs("-error         Set the error status to error.\n", stderr);
+        fputs("-no_error      Set the error status to NO error.\n", stderr);
+        fputs("-paper_out     Set the paper status to paper out.\n", stderr);
+        fputs("-paper_loaded  Set the paper status to paper loaded.\n",
+                        stderr);
+        fputs("-read_data     Read printer data from driver.\n", stderr);
+        fputs("-write_data    Write printer sata to driver.\n", stderr);
+        fputs("-NB_read_data  (Non-Blocking) Read printer data from driver.\n",
+                        stderr);
+        fputs("\n\n", stderr);
+
+        exit(1);
+}
+
+
+static int
+read_printer_data()
+{
+        struct pollfd   fd[1];
+
+        /* Open device file for printer gadget. */
+        fd[0].fd = open(PRINTER_FILE, O_RDWR);
+        if (fd[0].fd < 0) {
+                printf("Error %d opening %s\n", fd[0].fd, PRINTER_FILE);
+                close(fd[0].fd);
+                return(-1);
+        }
+
+        fd[0].events = POLLIN | POLLRDNORM;
+
+        while (1) {
+                static char buf[BUF_SIZE];
+                int bytes_read;
+                int retval;
+
+                /* Wait for up to 1 second for data. */
+                retval = poll(fd, 1, 1000);
+
+                if (retval && (fd[0].revents & POLLRDNORM)) {
+
+                        /* Read data from printer gadget driver. */
+                        bytes_read = read(fd[0].fd, buf, BUF_SIZE);
+
+                        if (bytes_read < 0) {
+                                printf("Error %d reading from %s\n",
+                                                fd[0].fd, PRINTER_FILE);
+                                close(fd[0].fd);
+                                return(-1);
+                        } else if (bytes_read > 0) {
+                                /* Write data to standard OUTPUT (stdout). */
+                                fwrite(buf, 1, bytes_read, stdout);
+                                fflush(stdout);
+                        }
+
+                }
+
+        }
+
+        /* Close the device file. */
+        close(fd[0].fd);
+
+        return 0;
+}
+
+
+static int
+write_printer_data()
+{
+        struct pollfd   fd[1];
+
+        /* Open device file for printer gadget. */
+        fd[0].fd = open (PRINTER_FILE, O_RDWR);
+        if (fd[0].fd < 0) {
+                printf("Error %d opening %s\n", fd[0].fd, PRINTER_FILE);
+                close(fd[0].fd);
+                return(-1);
+        }
+
+        fd[0].events = POLLOUT | POLLWRNORM;
+
+        while (1) {
+                int retval;
+                static char buf[BUF_SIZE];
+                /* Read data from standard INPUT (stdin). */
+                int bytes_read = fread(buf, 1, BUF_SIZE, stdin);
+
+                if (!bytes_read) {
+                        break;
+                }
+
+                while (bytes_read) {
+
+                        /* Wait for up to 1 second to sent data. */
+                        retval = poll(fd, 1, 1000);
+
+                        /* Write data to printer gadget driver. */
+                        if (retval && (fd[0].revents & POLLWRNORM)) {
+                                retval = write(fd[0].fd, buf, bytes_read);
+                                if (retval < 0) {
+                                        printf("Error %d writing to %s\n",
+                                                        fd[0].fd,
+                                                        PRINTER_FILE);
+                                        close(fd[0].fd);
+                                        return(-1);
+                                } else {
+                                        bytes_read -= retval;
+                                }
+
+                        }
+
+                }
+
+        }
+
+        /* Wait until the data has been sent. */
+        fsync(fd[0].fd);
+
+        /* Close the device file. */
+        close(fd[0].fd);
+
+        return 0;
+}
+
+
+static int
+read_NB_printer_data()
+{
+        int             fd;
+        static char     buf[BUF_SIZE];
+        int             bytes_read;
+
+        /* Open device file for printer gadget. */
+        fd = open(PRINTER_FILE, O_RDWR|O_NONBLOCK);
+        if (fd < 0) {
+                printf("Error %d opening %s\n", fd, PRINTER_FILE);
+                close(fd);
+                return(-1);
+        }
+
+        while (1) {
+                /* Read data from printer gadget driver. */
+                bytes_read = read(fd, buf, BUF_SIZE);
+                if (bytes_read <= 0) {
+                        break;
+                }
+
+                /* Write data to standard OUTPUT (stdout). */
+                fwrite(buf, 1, bytes_read, stdout);
+                fflush(stdout);
+        }
+
+        /* Close the device file. */
+        close(fd);
+
+        return 0;
+}
+
+
+static int
+get_printer_status()
+{
+        int     retval;
+        int     fd;
+
+        /* Open device file for printer gadget. */
+        fd = open(PRINTER_FILE, O_RDWR);
+        if (fd < 0) {
+                printf("Error %d opening %s\n", fd, PRINTER_FILE);
+                close(fd);
+                return(-1);
+        }
+
+        /* Make the IOCTL call. */
+        retval = ioctl(fd, GADGET_GET_PRINTER_STATUS);
+        if (retval < 0) {
+                fprintf(stderr, "ERROR: Failed to set printer status\n");
+                return(-1);
+        }
+
+        /* Close the device file. */
+        close(fd);
+
+        return(retval);
+}
+
+
+static int
+set_printer_status(unsigned char buf, int clear_printer_status_bit)
+{
+        int     retval;
+        int     fd;
+
+        retval = get_printer_status();
+        if (retval < 0) {
+                fprintf(stderr, "ERROR: Failed to get printer status\n");
+                return(-1);
+        }
+
+        /* Open device file for printer gadget. */
+        fd = open(PRINTER_FILE, O_RDWR);
+
+        if (fd < 0) {
+                printf("Error %d opening %s\n", fd, PRINTER_FILE);
+                close(fd);
+                return(-1);
+        }
+
+        if (clear_printer_status_bit) {
+                retval &= ~buf;
+        } else {
+                retval |= buf;
+        }
+
+        /* Make the IOCTL call. */
+        if (ioctl(fd, GADGET_SET_PRINTER_STATUS, (unsigned char)retval)) {
+                fprintf(stderr, "ERROR: Failed to set printer status\n");
+                return(-1);
+        }
+
+        /* Close the device file. */
+        close(fd);
+
+        return 0;
+}
+
+
+static int
+display_printer_status()
+{
+        char    printer_status;
+
+        printer_status = get_printer_status();
+        if (printer_status < 0) {
+                fprintf(stderr, "ERROR: Failed to get printer status\n");
+                return(-1);
+        }
+
+        printf("Printer status is:\n");
+        if (printer_status & PRINTER_SELECTED) {
+                printf("     Printer is Selected\n");
+        } else {
+                printf("     Printer is NOT Selected\n");
+        }
+        if (printer_status & PRINTER_PAPER_EMPTY) {
+                printf("     Paper is Out\n");
+        } else {
+                printf("     Paper is Loaded\n");
+        }
+        if (printer_status & PRINTER_NOT_ERROR) {
+                printf("     Printer OK\n");
+        } else {
+                printf("     Printer ERROR\n");
+        }
+
+        return(0);
+}
+
+
+int
+main(int  argc, char *argv[])
+{
+        int     i;              /* Looping var */
+        int     retval = 0;
+
+        /* No Args */
+        if (argc == 1) {
+                usage(0);
+                exit(0);
+        }
+
+        for (i = 1; i < argc && !retval; i ++) {
+
+                if (argv[i][0] != '-') {
+                        continue;
+                }
+
+                if (!strcmp(argv[i], "-get_status")) {
+                        if (display_printer_status()) {
+                                retval = 1;
+                        }
+
+                } else if (!strcmp(argv[i], "-paper_loaded")) {
+                        if (set_printer_status(PRINTER_PAPER_EMPTY, 1)) {
+                                retval = 1;
+                        }
+
+                } else if (!strcmp(argv[i], "-paper_out")) {
+                        if (set_printer_status(PRINTER_PAPER_EMPTY, 0)) {
+                                retval = 1;
+                        }
+
+                } else if (!strcmp(argv[i], "-selected")) {
+                        if (set_printer_status(PRINTER_SELECTED, 0)) {
+                                retval = 1;
+                        }
+
+                } else if (!strcmp(argv[i], "-not_selected")) {
+                        if (set_printer_status(PRINTER_SELECTED, 1)) {
+                                retval = 1;
+                        }
+
+                } else if (!strcmp(argv[i], "-error")) {
+                        if (set_printer_status(PRINTER_NOT_ERROR, 1)) {
+                                retval = 1;
+                        }
+
+                } else if (!strcmp(argv[i], "-no_error")) {
+                        if (set_printer_status(PRINTER_NOT_ERROR, 0)) {
+                                retval = 1;
+                        }
+
+                } else if (!strcmp(argv[i], "-read_data")) {
+                        if (read_printer_data()) {
+                                retval = 1;
+                        }
+
+                } else if (!strcmp(argv[i], "-write_data")) {
+                        if (write_printer_data()) {
+                                retval = 1;
+                        }
+
+                } else if (!strcmp(argv[i], "-NB_read_data")) {
+                        if (read_NB_printer_data()) {
+                                retval = 1;
+                        }
+
+                } else {
+                        usage(argv[i]);
+                        retval = 1;
+                }
+        }
+
+        exit(retval);
+}
diff --git a/Documentation/usb/iuu_phoenix.txt b/Documentation/usb/iuu_phoenix.txt
new file mode 100644
index 000000000000..e5f048067da4
--- /dev/null
+++ b/Documentation/usb/iuu_phoenix.txt
@@ -0,0 +1,84 @@
+Infinity Usb Unlimited Readme
+-----------------------------
+
+Hi all,
+
+
+This module provide a serial interface to use your
+IUU unit in phoenix mode. Loading this module will
+bring a ttyUSB[0-x] interface. This driver must be
+used by your favorite application to pilot the IUU
+
+This driver is still in beta stage, so bugs can
+occur and your system may freeze. As far I now,
+I never had any problem with it, but I'm not a real
+guru, so don't blame me if your system is unstable
+
+You can plug more than one IUU. Every unit will
+have his own device file(/dev/ttyUSB0,/dev/ttyUSB1,...)
+
+
+
+How to tune the reader speed ?
+
+ A few parameters can be used at load time
+ To use parameters, just unload the module if it is
+ already loaded and use modprobe iuu_phoenix param=value.
+ In case of prebuilt module, use the command
+ insmod iuu_phoenix param=value.
+
+ Example:
+
+ modprobe iuu_phoenix clockmode=3
+
+ The parameters are:
+
+ parm:           clockmode:1=3Mhz579,2=3Mhz680,3=6Mhz (int)
+ parm:           boost:overclock boost percent 100 to 500 (int)
+ parm:           cdmode:Card detect mode 0=none, 1=CD, 2=!CD, 3=DSR, 4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING (int)
+ parm:           xmas:xmas color enabled or not (bool)
+ parm:           debug:Debug enabled or not (bool)
+
+-  clockmode will provide 3 different base settings commonly adopted by
+   different software:
+        1. 3Mhz579
+        2. 3Mhz680
+        3. 6Mhz
+
+-  boost provide a way to overclock the reader ( my favorite :-)  )
+   For example to have best performance than a simple clockmode=3, try this:
+
+      modprobe boost=195
+
+   This will put the reader in a base of 3Mhz579 but boosted a 195 % !
+   the real clock will be now : 6979050 Hz ( 6Mhz979 ) and will increase
+   the speed to a score 10 to 20% better than the simple clockmode=3 !!!
+
+
+-  cdmode permit to setup the signal used to inform the userland ( ioctl answer )
+   if the card is present or not. Eight signals are possible.
+
+-  xmas is completely useless except for your eyes. This is one of my friend who was
+   so sad to have a nice device like the iuu without seeing all color range available.
+   So I have added this option to permit him to see a lot of color ( each activity change the color
+   and the frequency randomly )
+
+-  debug will produce a lot of debugging messages...
+
+
+ Last notes:
+
+ Don't worry about the serial settings, the serial emulation
+ is an abstraction, so use any speed or parity setting will
+ work. ( This will not change anything ).Later I will perhaps
+ use this settings to deduce de boost but is that feature
+ really necessary ?
+ The autodetect feature used is the serial CD. If that doesn't
+ work for your software, disable detection mechanism in it.
+
+
+ Have fun !
+
+ Alain Degreffe
+
+ eczema(at)ecze.com