user/sven/linux.git/include/linux/usb/serial.h, branch v3.14.75

USB: serial: export usb_serial_generic_write_start

2013-10-12T00:00:26Z

Export usb_serial_generic_write_start which is needed when implementing a custom resume function while still relying on the generic write implementation. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: increase the number of devices we support

2013-06-17T20:34:15Z

We had the limit of 255 USB to serial devices on one system for almost 15 years, with no complaints. But now it's time to move on from these tiny "baby" systems, and bump the number up to 512, which should last us a few more years: "512 is a nice number" -- Tobias Winter Note, this is still a static value, and uses up tty core memory with this many tty devices allocated. Converting the driver to use TTY_DRIVER_DYNAMIC_DEV is the next thing to do in order to remove this limitation. Reported-by: Tobias Winter Tested-by: Tobias Winter Reviewed-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: make minor allocation dynamic

2013-06-17T20:30:02Z

This moves the allocation of minor device numbers from a static array to be dynamic, using the idr interface. This means that you could potentially get "gaps" in a minor number range for a single USB serial device with multiple ports, but all should still work properly. We remove the 'minor' field from the usb_serial structure, as it no longer makes any sense for it (use the field in the usb_serial_port structure if you really want to know this number), and take the fact that we were overloading a number in this field to determine if we had initialized the minor numbers or not, and just use a flag variable instead. Note, we still have the limitation of 255 USB to serial devices in the system, as that is all we are registering with the TTY layer at this point in time. Tested-by: Tobias Winter Reviewed-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: ports: add minor and port number

2013-06-10T21:46:40Z

The usb_serial_port structure had the number field, which was the minor number for the port, which almost no one really cared about. They really wanted the number of the port within the device, which you had to subtract from the minor of the parent usb_serial_device structure. To clean this up, provide the real minor number of the port, and the number of the port within the serial device separately, as these numbers might not be related in the future. Bonus is that this cleans up a lot of logic in the drivers, and saves lines overall. Tested-by: Tobias Winter Reviewed-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman -- drivers/staging/serqt_usb2/serqt_usb2.c | 21 +++-------- drivers/usb/serial/ark3116.c | 2 - drivers/usb/serial/bus.c | 6 +-- drivers/usb/serial/console.c | 2 - drivers/usb/serial/cp210x.c | 2 - drivers/usb/serial/cypress_m8.c | 4 +- drivers/usb/serial/digi_acceleport.c | 6 --- drivers/usb/serial/f81232.c | 5 +- drivers/usb/serial/garmin_gps.c | 6 +-- drivers/usb/serial/io_edgeport.c | 58 ++++++++++++-------------------- drivers/usb/serial/io_ti.c | 21 ++++------- drivers/usb/serial/keyspan.c | 29 +++++++--------- drivers/usb/serial/metro-usb.c | 4 +- drivers/usb/serial/mos7720.c | 37 +++++++++----------- drivers/usb/serial/mos7840.c | 52 +++++++++------------------- drivers/usb/serial/opticon.c | 2 - drivers/usb/serial/pl2303.c | 2 - drivers/usb/serial/quatech2.c | 7 +-- drivers/usb/serial/sierra.c | 2 - drivers/usb/serial/ti_usb_3410_5052.c | 10 ++--- drivers/usb/serial/usb-serial.c | 7 ++- drivers/usb/serial/usb_wwan.c | 2 - drivers/usb/serial/whiteheat.c | 20 +++++------ include/linux/usb/serial.h | 6 ++- 24 files changed, 133 insertions(+), 180 deletions(-)

USB: serial: add generic wait_until_sent implementation

2013-05-17T00:32:21Z

Add generic wait_until_sent implementation which polls for empty hardware buffers using the new port-operation tx_empty. The generic implementation will be used for all sub-drivers that implement tx_empty but does not define wait_until_sent. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: add wait_until_sent operation

2013-05-17T00:32:21Z

Add wait_until_sent operation which can be used to wait for hardware buffers to drain. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: remove unused MSR-wait queue

2013-03-25T20:54:30Z

Remove the port MSR-wait queue now that all drivers have been migrated to the tty-port queue. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: add generic get_icount implementation

2013-03-25T20:50:51Z

Add generic get_icount implementation that subdrivers relying on the port interrupt counters can use. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: add generic TIOCMIWAIT implementation

2013-03-25T20:50:51Z

Add generic TIOCMIWAIT implementation which correctly handles hangup, USB-device disconnect, does not rely on the deprecated sleep_on functions and hence does not suffer from the races currently affecting several usb-serial drivers. This makes it much easier to add TIOCMIWAIT support to subdrivers as the tricky details related to hangup and disconnect (e.g. atomicity, that the private port data may have been freed when woken up, and waking up processes at disconnect) have been handled once and for all. To add support to a subdriver, simply set the tiocmiwait-port-operation field, update the port icount fields and wake up any process sleeping on the tty-port modem-status-change wait queue on changes. Note that the tty-port initialised flag can be used to detect disconnected as the port will be hung up as part of disconnect (and cannot be reactivated due to the disconnected flag). However, as the tty-port implementation currently wakes up processes before calling port shutdown, the tty-hupping flag must also be checked to detect hangup for now. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: add tiocmiwait subdriver operation

2013-03-25T20:50:50Z

Add tiocmiwait operation to struct usb_serial_driver. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman