aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/usb/serial
Commit message (Collapse)AuthorAge
...
* USB: oti6858: use kfifo to implement write bufferingJohan Hovold2010-05-20
| | | | | | | | | | | | Kill custom fifo implementation. Use private write fifo to minimise changes to lock handling. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cypress_m8: use kfifo to implement write bufferingJohan Hovold2010-05-20
| | | | | | | | | | | | | Kill custom fifo implementation. Note that cypress_m8 has no port write fifo as it has no bulk-out endpoint. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cypress_m8: remove unused drain defineJohan Hovold2010-05-20
| | | | | | | | Driver uses tty-port drain these days. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: usb_debug: set bulk out size at probeJohan Hovold2010-05-20
| | | | | | | | Use bulk_out_size in usb_serial_driver to set urb buffer size. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: CP210x New Device IDs 11 New device IDsCraig Shelley2010-05-20
| | | | | | | Signed-off-by: Craig Shelley <craig@microtron.org.uk> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: visor: increase bulk-out buffer sizeJohan Hovold2010-05-20
| | | | | | | | | | | | | | Increase the bulk-out buffer size to avoid any regression in throughput after replacing the old writing scheme which used dynamic buffers (e.g. up to 2k). 256b has been determined to be a good choice for several drivers including ftdi_sio which used to have a more or less identical write implementation. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: belkin_sa: implement line status handlingJohan Hovold2010-05-20
| | | | | | | | | | Use process_read_urb to implement line status handling. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: belkin_sa: clean up openJohan Hovold2010-05-20
| | | | | | | | Use generic open to submit read urb. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: belkin_sa: minor clean-upsJohan Hovold2010-05-20
| | | | | | | | | Remove some whitepace and comments. Clean up close. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cp210x: use generic open to start reading from deviceJohan Hovold2010-05-20
| | | | | | Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: visor: reimplement using generic frameworkJohan Hovold2010-05-20
| | | | | | | | | | | | | | | | | Kill custom read and write implementations (dynamically allocated write urbs). Note that I chose to remove the stat module parameter which was supposed to keep count of the amount of data sent and received, but which has been broken for three years (since b308e74d9c708ee2a9af14fbe235e0a41216f4ed "USB: visor driver adapted to new tty buffering" -- bytes_in was incorrectly updated and was thus always reported as 0). Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: visor: fix memory leakJohan Hovold2010-05-20
| | | | | | | | | | Fix memory leak for some devices (Sony Clie 3.5) due to port private data not being freed on release. Cc: stable <stable@kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: spcp8x5: reimplement using generic frameworkJohan Hovold2010-05-20
| | | | | | | | | | Kill custom fifo, read, and single-urb write implementations. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ipaq: reimplement using generic frameworkJohan Hovold2010-05-20
| | | | | | | | | | | Kill custom fifo, read and write implementations (single-urb and fifo, but still maintained list of 256*256b urb buffers per port). Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: empeg: reimplement using generic frameworkJohan Hovold2010-05-20
| | | | | | | | | | | | | | Kill custom read and write implementations (static 16*4k write-urb pool shared among all ports in system). Also remove old changelog entries in header (code is now gone, and these entries can still be retrieved through git). Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: serial: add special case for processing of empty read urbsJohan Hovold2010-05-20
| | | | | | | | Return immediately from generic process_read_urb if urb is empty. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: kobil: fix memory leakJohan Hovold2010-05-20
| | | | | | | | | | | An urb transfer buffer is allocated at every open but was never freed. This driver is a bit of a mess... Cc: stable <stable@kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: option.c: OLIVETTI OLICARD100 supportNils Radtke2010-05-20
| | | | | | | | | | | | | | | This patch adds support for an olivetti olicard100 HЅDPA usb-stick. This device is a zeroCD one with ID 0b3c:c700 that needs switching via eject or usb-modeswitch with MessageContent="5553424312345678000000000000061b000000030000000000000000000000". After switching it has ID 0b3c:c000 and provides 5 serial ports ttyUSB[0-4]. Port 0 (modem) and 4 are interrupt ports. Signed-off-by: Nils Radtke <lkml@Think-Future.de> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: visor.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pl2303.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: kobil_sct.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: kl5kusb105.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: io_edgeport: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cypress_m8.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: belkin_sa.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mct_u232.h: checkpatch cleanupsGreg Kroah-Hartman2010-05-20
| | | | | | Minor whitespace cleanups to make checkpatch happy. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: cp210x: remove redundant disconnect()Johan Hovold2010-05-20
| | | | | | | | | Remove cp210x_disconnect which is used to kill traffic although this is already handled by the generic framework. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: io_edgeport: Use kzallocJulia Lawall2010-05-20
| | | | | | | | | | | | | | | | | | | | | | | | Use kzalloc rather than the combination of kmalloc and memset. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,size,flags; statement S; @@ -x = kmalloc(size,flags); +x = kzalloc(size,flags); if (x == NULL) S -memset(x, 0, size); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ipw: reimplement using generic frameworkJohan Hovold2010-05-20
| | | | | | | | Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ipw: remove dummy port_probe and port_removeJohan Hovold2010-05-20
| | | | | | Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ipw: clean up dtr-rts handlingJohan Hovold2010-05-20
| | | | | | | | No need to raise dtr/rts in open as this is taken care of by tty layer. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ir-usb: reimplement using generic frameworkJohan Hovold2010-05-20
| | | | | | | | Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ir-usb: fix set_termios raceJohan Hovold2010-05-20
| | | | | | | | | | | | Use dynamically allocated urb for baudrate changes rather than unconditionally submitting the port write urb which may already be in use. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ir-usb: allow custom bulk buffer size without reallocationJohan Hovold2010-05-20
| | | | | | | | | | Use usb_serial_driver bulk_in_size and bulk_out_size to make sure buffers of appropriate sizes are allocated in the first place rather than reallocating them at every open. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ir-usb: fix double freeJohan Hovold2010-05-20
| | | | | | | | | | If the user specifies a custom bulk buffer size we get a double free at port release. Cc: stable <stable@kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: clean up line-status handlingJohan Hovold2010-05-20
| | | | | | | | | | | | | | | Reverse priority of errors reported to ldisc so that it matches that of other serial drivers (break takes precedence over parity, which takes precedence over framing errors). Also make sure overrun errors are handled as in other drivers, that is, an overrun error is always reported and is not associated with any received character (instead a NULL character with the TTY_OVERRUN flag set is inserted). Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: pl2303: use tty_insert_flip_string_fixed_flagJohan Hovold2010-05-20
| | | | | | | | | Use tty_insert_flip_string_fixed_flag to report errors to line discipline. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: use tty_insert_flip_string_fixed_flagJohan Hovold2010-05-20
| | | | | | | | | Use tty_insert_flip_string_fixed_flag to report errors to line discipline. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ark3116: reimplement read processingJohan Hovold2010-05-20
| | | | | | | | | | | Use process_read_urb to implement read processing. Compile-only tested. Signed-off-by: Johan Hovold <jhovold@gmail.com> Acked-by: Bart Hartgers <bart.hartgers@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: tty: fix incorrect use of tty_insert_flip_string_fixed_flagJohan Hovold2010-05-20
| | | | | | | | | | | | | Fix regression introduced by commit a108bfcb372d8c4452701039308fb95747911c59 (USB: tty: Prune uses of tty_request_room in the USB layer) which broke three drivers (cypress_m8, digi_acceleport and spcp8x5) through incorrect use of tty_insert_flip_string_fixed_flag. Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: stable <stable@kernel.org> [.34] Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: serial: remove multi-urb write from generic driverJohan Hovold2010-05-20
| | | | | | | | | | | | | | | | | | | Remove multi-urb write from the generic driver and simplify the prepare_write_buffer prototype: int (*prepare_write_buffer)(struct usb_serial_port *port, void *dest, size_t size); The default implementation simply fills dest with data from port write fifo but drivers can override it if they need to process the outgoing data (e.g. add headers). Turn ftdi_sio into a generic fifo-based driver, which lowers CPU usage significantly for small writes while retaining maximum throughput. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: serial: reimplement generic fifo-based writesJohan Hovold2010-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Reimplement fifo-based writes in the generic driver using a multiple pre-allocated urb scheme. In contrast to multi-urb writes, no allocations (of urbs or buffers) are made during run-time and there is less pressure on the host stack queues as currently only two urbs are used (implementation is generic and can handle more than two urbs as well, though). Initial tests using ftdi_sio show that the implementation achieves the same (maximum) throughput at high baudrates as multi-urb writes. The CPU usage is much lower than for multi-urb writes for small write requests and only slightly higher for large (e.g. 2k) requests (due to extra copy via fifo?). Also outperforms multi-urb writes for small write requests on an embedded arm-9 system, where multi-urb writes are CPU-bound at high baudrates (perf reveals that a lot of time is spent in the host stack enqueue function -- could perhaps be a bug as well). Keeping the original write_urb, buffer and flag for now as there are other drivers depending on them. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: aircable: rewrite using generic read and write implementationsJohan Hovold2010-05-20
| | | | | | | | | | | | | | | | | Kill circular buffers for tx and rx as well as read work thread, and switch to generic kfifo-based write implementation. This is an example of how prepare_write_buffer and process_read_urb can be used to handle protocols with packet headers. Please note the diffstat which shows that the same functionality is now provided using only a tenth of the code (including whitespace and comments, though). Tested-by: Naranjo, Manuel Francisco <naranjo.manuel@gmail.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: clean up SIO write supportJohan Hovold2010-05-20
| | | | | | | | | The original SIO devices require a control byte for every packet written. Clean up the unnecessarily messy implementation of this. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: ftdi_sio: switch to generic write implementationJohan Hovold2010-05-20
| | | | | | | | | | | | | | | | Switch to the generic, multi-urb, write implementation. Note that this will also make it fairly easy to use the generic fifo-based write implementation: simply unset the multi_urb_write flag and modify prepare_write_buffer (or unset if not using a legacy SIO device). This may be desirable for instance on an embedded system where optimal throughput at high baudrates may not be as important as other factors (e.g. no allocations during runtime and less pressure on host stack). Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: oti6858: declare send_data() as staticBill Pemberton2010-05-20
| | | | | | Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: qcaux: add Samsung U520 device IDDan Williams2010-05-20
| | | | | | | | | Another CDC-ACM + vendor specific interface layout. Signed-off-by: Dan Williams <dcbw@redhat.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: option: add PID for ZTE productzhao1980ming2010-05-20
| | | | | | | | | this patch adds ZTE modem devices Signed-off-by: Joey <zhao.ming9@zte.com.cn> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mos7840: Cleanup useless headerAlessio Igor Bogani2010-05-20
| | | | | | | | BKL isn't anymore present into this file thus it is no necessary still include smp_lock.h. Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-09 00:42:40 -0400