summaryrefslogtreecommitdiff
path: root/drivers/usb/serial/cp210x.c
AgeCommit message (Collapse)Author
2025-01-08USB: serial: cp210x: add Phoenix Contact UPS DeviceJohan Hovold
Phoenix Contact sells UPS Quint devices [1] with a custom datacable [2] that embeds a Silicon Labs converter: Bus 001 Device 003: ID 1b93:1013 Silicon Labs Phoenix Contact UPS Device Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x1b93 idProduct 0x1013 bcdDevice 1.00 iManufacturer 1 Silicon Labs iProduct 2 Phoenix Contact UPS Device iSerial 3 <redacted> bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0020 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 2 Phoenix Contact UPS Device Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 [1] https://www.phoenixcontact.com/en-pc/products/power-supply-unit-quint-ps-1ac-24dc-10-2866763 [2] https://www.phoenixcontact.com/en-il/products/data-cable-preassembled-ifs-usb-datacable-2320500 Reported-by: Giuseppe Corbelli <giuseppe.corbelli@antaresvision.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2024-08-26USB: serial: drop driver owner initializationKrzysztof Kozlowski
Core in usb_serial_register_drivers() already sets the .owner, so driver does not need to. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2024-03-05USB: serial: cp210x: add pid/vid for TDK NC0110013M and MM0110113MToru Katagiri
TDK NC0110013M and MM0110113M have custom USB IDs for CP210x, so we need to add them to the driver. Signed-off-by: Toru Katagiri <Toru.Katagiri@tdk.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2024-03-04USB: serial: cp210x: add ID for MGP Instruments PDS100Christian Häggström
The radiation meter has the text MGP Instruments PDS-100G or PDS-100GN produced by Mirion Technologies. Tested by forcing the driver association with echo 10c4 863c > /sys/bus/usb-serial/drivers/cp210x/new_id and then setting the serial port in 115200 8N1 mode. The device announces ID_USB_VENDOR_ENC=Silicon\x20Labs and ID_USB_MODEL_ENC=PDS100 Signed-off-by: Christian Häggström <christian.haggstrom@orexplore.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2024-03-04USB: serial: add device ID for VeriFone adapterCameron Williams
Add device ID for a (probably fake) CP2102 UART device. lsusb -v output: Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 [unknown] bDeviceSubClass 0 [unknown] bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x11ca VeriFone Inc idProduct 0x0212 Verifone USB to Printer bcdDevice 1.00 iManufacturer 1 Silicon Labs iProduct 2 Verifone USB to Printer iSerial 3 0001 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0020 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 [unknown] bInterfaceProtocol 0 iInterface 2 Verifone USB to Printer Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device Status: 0x0000 (Bus Powered) Signed-off-by: Cameron Williams <cang1@live.co.uk> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2024-01-30USB: serial: cp210x: add ID for IMST iM871A-USBLeonard Dallmayr
The device IMST USB-Stick for Smart Meter is a rebranded IMST iM871A-USB Wireless M-Bus USB-adapter. It is used to read wireless water, gas and electricity meters. Signed-off-by: Leonard Dallmayr <leonard.dallmayr@mailbox.org> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2023-06-07USB: serial: cp210x: disable break signalling on CP2105 SCIJohan Hovold
Only the first UART interface (ECI) on CP2105 supports break signalling. Return an error on requests for break state changes for the second interface (SCI) to avoid transmitting a garbage character and waiting when break is not supported. Tested-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2023-06-07USB: serial: return errors from break handlingJohan Hovold
Start propagating errors to user space when setting the break state fails. This will be used by follow-on changes to also report when a driver or device does not support break control. Tested-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2023-03-13USB: serial: cp210x: add Silicon Labs IFS-USB-DATACABLE IDsKees Jan Koster
The Silicon Labs IFS-USB-DATACABLE is used in conjunction with for example the Quint UPSes. It is used to enable Modbus communication with the UPS to query configuration, power and battery status. Signed-off-by: Kees Jan Koster <kjkoster@kjkoster.org> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2023-01-16USB: serial: cp210x: add SCALANCE LPE-9000 device idMichael Adler
Add the USB serial console device ID for Siemens SCALANCE LPE-9000 which have a USB port for their serial console. Signed-off-by: Michael Adler <michael.adler@siemens.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2022-11-30USB: serial: cp210x: add support for B0 hangupJohan Hovold
A request to set the line speed to B0 is used to hang up a modem connection by deasserting the modem control lines. Note that there is no need reconfigure the line speed in hardware when B0 is requested (even if some drivers do set it to an arbitrary value for implementation or protocol reasons). Reviewed-by: Alex Henrie <alexh@vpitech.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2022-11-28USB: serial: cp210x: add Kamstrup RF sniffer PIDsBruno Thomsen
The RF sniffers are based on cp210x where the RF frontends are based on a different USB stack. RF sniffers can analyze packets meta data including power level and perform packet injection. Can be used to perform RF frontend self-test when connected to a concentrator, ex. arch/arm/boot/dts/imx7d-flex-concentrator.dts Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2022-09-05Merge 6.0-rc4 into tty-nextGreg Kroah-Hartman
We need the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-31USB: serial: cp210x: add Decagon UCA device idJohan Hovold
Add the device id for Decagon Devices USB Cable Adapter. Link: https://lore.kernel.org/r/trinity-819f9db2-d3e1-40e9-a669-9c245817c046-1661523546680@msvc-mesg-web108 Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2022-08-30usb: serial: Make ->set_termios() old ktermios constIlpo Järvinen
There should be no reason to adjust old ktermios which is going to get discarded anyway. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220816115739.10928-8-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-20USB: serial: cp210x: add PIDs for Kamstrup USB Meter ReaderBruno Thomsen
Wireless reading of water and heat meters using 868 MHz wM-Bus mode C1. The two different product IDs allow detection of dongle antenna solution: - Internal antenna - External antenna using SMA connector https://www.kamstrup.com/en-en/water-solutions/water-meter-reading/usb-meter-reader Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Link: https://lore.kernel.org/r/20220414081202.5591-1-bruno.thomsen@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2022-02-01USB: serial: cp210x: add CPI Bulk Coin Recycler idJohan Hovold
Add the device id for the Crane Payment Innovation / Money Controls Bulk Coin Recycler: https://www.cranepi.com/en/system/files/Support/OM_BCR_EN_V1-04_0.pdf Reported-by: Scott Russell <Scott.Russell2@ncr.com> Cc: stable@vger.kernel.org Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2022-02-01USB: serial: cp210x: add NCR Retail IO box idJohan Hovold
Add the device id for NCR's Retail IO box (CP2105) used in NCR FastLane SelfServ Checkout - R6C: https://www.ncr.com/product-catalog/ncr-fastlane-selfserv-checkout-r6c Reported-by: Scott Russell <Scott.Russell2@ncr.com> Cc: stable@vger.kernel.org Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-12-14USB: serial: cp210x: fix CP2105 GPIO registrationJohan Hovold
When generalising GPIO support and adding support for CP2102N, the GPIO registration for some CP2105 devices accidentally broke. Specifically, when all the pins of a port are in "modem" mode, and thus unavailable for GPIO use, the GPIO chip would now be registered without having initialised the number of GPIO lines. This would in turn be rejected by gpiolib and some errors messages would be printed (but importantly probe would still succeed). Fix this by initialising the number of GPIO lines before registering the GPIO chip. Note that as for the other device types, and as when all CP2105 pins are muxed for LED function, the GPIO chip is registered also when no pins are available for GPIO use. Reported-by: Maarten Brock <m.brock@vanmierlo.com> Link: https://lore.kernel.org/r/5eb560c81d2ea1a2b4602a92d9f48a89@vanmierlo.com Fixes: c8acfe0aadbe ("USB: serial: cp210x: implement GPIO support for CP2102N") Cc: stable@vger.kernel.org # 4.19 Cc: Karoly Pados <pados@pados.hu> Link: https://lore.kernel.org/r/20211126094348.31698-1-johan@kernel.org Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Tested-by: Maarten Brock <m.brock@vanmierlo.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-10-29Merge tag 'usb-serial-5.16-rc1' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for 5.16-rc1 Here are the USB-serial updates for 5.16-rc1, including: - conversions of usb_control_msg() calls to use the new wrappers where appropriate - fix of the keyspan probe error handling after a low-order allocation failure (e.g. due to fault injection) - allow hung up ports to be runtime suspended Included are also some related clean ups. All have been in linux-next with no reported issues. * tag 'usb-serial-5.16-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: keyspan: fix memleak on probe errors USB: serial: cp210x: use usb_control_msg_recv() and usb_control_msg_send() USB: serial: ch314: use usb_control_msg_recv() USB: serial: kl5kusb105: drop line-status helper USB: serial: kl5kusb105: simplify line-status handling USB: serial: kl5kusb105: clean up line-status handling USB: serial: kl5kusb105: use usb_control_msg_recv() and usb_control_msg_send() USB: serial: keyspan_pda: use usb_control_msg_recv() USB: serial: ftdi_sio: use usb_control_msg_recv() USB: serial: f81232: use usb_control_msg_recv() and usb_control_msg_send() USB: serial: allow hung up ports to be suspended USB: serial: clean up core error labels
2021-10-27USB: serial: cp210x: use usb_control_msg_recv() and usb_control_msg_send()Himadri Pandya
The new wrapper functions for usb_control_msg() can accept data from stack and treat short reads as errors. Hence use the wrappers functions. Please note that because of this change, cp210x_read_reg_block() will no longer log the length of short reads. Signed-off-by: Himadri Pandya <himadrispandya@gmail.com> Link: https://lore.kernel.org/r/20211001065720.21330-3-himadrispandya@gmail.com [ johan: style changes ] Signed-off-by: Johan Hovold <johan@kernel.org>
2021-09-24USB: serial: cp210x: add ID for GW Instek GDM-834x Digital MultimeterUwe Brandt
Add the USB serial device ID for the GW Instek GDM-834x Digital Multimeter. Signed-off-by: Uwe Brandt <uwe.brandt@gmail.com> Link: https://lore.kernel.org/r/YUxFl3YUCPGJZd8Y@hovoldconsulting.com Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2021-09-23USB: serial: cp210x: add part-number debug printkJohan Hovold
Add a part-number debug printk to facilitate debugging. Signed-off-by: Johan Hovold <johan@kernel.org>
2021-09-23USB: serial: cp210x: fix dropped characters with CP2102Johan Hovold
Some CP2102 do not support event-insertion mode but return no error when attempting to enable it. This means that any event escape characters in the input stream will not be escaped by the device and consequently regular data may be interpreted as escape sequences and be removed from the stream by the driver. The reporter's device has batch number DCL00X etched into it and as discovered by the SHA2017 Badge team, counterfeit devices with that marking can be detected by sending malformed vendor requests. [1][2] Tests confirm that the possibly counterfeit CP2102 returns a single byte in response to a malformed two-byte part-number request, while an original CP2102 returns two bytes. Assume that every CP2102 that behaves this way also does not support event-insertion mode (e.g. cannot report parity errors). [1] https://mobile.twitter.com/sha2017badge/status/1167902087289532418 [2] https://hackaday.com/2017/08/14/hands-on-with-the-shacamp-2017-badge/#comment-3903376 Reported-by: Malte Di Donato <malte@neo-soft.org> Tested-by: Malte Di Donato <malte@neo-soft.org> Fixes: a7207e9835a4 ("USB: serial: cp210x: add support for line-status events") Cc: stable@vger.kernel.org # 5.9 Link: https://lore.kernel.org/r/20210922113100.20888-1-johan@kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2021-07-30USB: serial: cp210x: determine fw version for CP2105 and CP2108Johan Hovold
CP2105, CP2108 and CP2102N have vendor requests that can be used to retrieve the firmware version. Having this information available is essential when trying to work around buggy firmware as a recent CP2102N regression showed. Determine and log the firmware version also for CP2105 and CP2108 during type detection at probe. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-07-30USB: serial: cp210x: clean up type detectionJohan Hovold
Clean up attach somewhat by moving type detection into the quirk helper and giving it a more generic name. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-07-30USB: serial: cp210x: clean up set-chars requestJohan Hovold
Use the generic control request helper to implement the SET_CHARS request. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-07-30USB: serial: cp210x: clean up control-request timeoutJohan Hovold
For consistency use the USB_CTRL_GET_TIMEOUT define for the read-register request timeout (same value as USB_CTRL_SET_TIMEOUT). Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-07-30USB: serial: cp210x: fix flow-control error handlingJohan Hovold
Make sure that the driver crtscts state is not updated in the unlikely event that the flow-control request fails. Not doing so could break RTS control. Fixes: 5951b8508855 ("USB: serial: cp210x: suppress modem-control errors") Cc: stable@vger.kernel.org # 5.11 Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-07-30USB: serial: cp210x: fix control-characters error handlingJohan Hovold
In the unlikely event that setting the software flow-control characters fails the other flow-control settings should still be updated (just like all other terminal settings). Move out the error message printed by the set_chars() helper to make it more obvious that this is intentional. Fixes: 7748feffcd80 ("USB: serial: cp210x: add support for software flow control") Cc: stable@vger.kernel.org # 5.11 Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-07-21USB: serial: cp210x: add ID for CEL EM3588 USB ZigBee stickJohn Keeping
Add the USB serial device ID for the CEL ZigBee EM3588 radio stick. Signed-off-by: John Keeping <john@metanate.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2021-07-20USB: serial: cp210x: fix comments for GE CS1000Ian Ray
Fix comments for GE CS1000 CP210x USB ID assignments. Fixes: 42213a0190b5 ("USB: serial: cp210x: add some more GE USB IDs") Signed-off-by: Ian Ray <ian.ray@ge.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2021-06-24Merge tag 'usb-serial-5.14-rc1' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for 5.14-rc1 Here are the USB-serial updates for 5.14-rc1, including: - gpio support for CP2108 - chars_in_buffer and write_room return-value updates - chars_in_buffer and write_room clean ups Included are also various clean ups. All have been in linux-next with no reported issues. * tag 'usb-serial-5.14-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: USB: serial: cp210x: add support for GPIOs on CP2108 USB: serial: drop irq-flags initialisations USB: serial: mos7840: drop buffer-callback return-value comments USB: serial: mos7720: drop buffer-callback sanity checks USB: serial: io_edgeport: drop buffer-callback sanity checks USB: serial: digi_acceleport: add chars_in_buffer locking USB: serial: digi_acceleport: reduce chars_in_buffer over-reporting USB: serial: make usb_serial_driver::chars_in_buffer return uint USB: serial: make usb_serial_driver::write_room return uint
2021-06-16USB: serial: cp210x: add support for GPIOs on CP2108Pho Tran
Similar to some other CP210x device types, CP2108 has a number of GPIO pins that can be exposed through gpiolib. CP2108 has four serial interfaces but only one set of GPIO pins, which is modelled as a single gpio chip and registered as a child of the first interface. CP2108 has 16 GPIOs so the width of the state variables needs to be extended to 16 bits and this is also reflected in the control requests. Like CP2104, CP2108 have GPIO pins with configurable alternate functions and pins unavailable for GPIO use are determined and reported to gpiolib at probe. Signed-off-by: Pho Tran <pho.tran@silabs.com> Co-developed-by: Tung Pham <tung.pham@silabs.com> Signed-off-by: Tung Pham <tung.pham@silabs.com> [ johan: rewrite gpio get() and set(); misc cleanups; amend commit message ] Link: https://lore.kernel.org/r/20210610132844.25495-1-johan@kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2021-06-10USB: serial: cp210x: fix CP2102N-A01 modem controlJohan Hovold
CP2102N revision A01 (firmware version <= 1.0.4) has a buggy flow-control implementation that uses the ulXonLimit instead of ulFlowReplace field of the flow-control settings structure (erratum CP2102N_E104). A recent change that set the input software flow-control limits incidentally broke RTS control for these devices when CRTSCTS is not set as the new limits would always enable hardware flow control. Fix this by explicitly disabling flow control for the buggy firmware versions and only updating the input software flow-control limits when IXOFF is requested. This makes sure that the terminal settings matches the default zero ulXonLimit (ulFlowReplace) for these devices. Link: https://lore.kernel.org/r/20210609161509.9459-1-johan@kernel.org Reported-by: David Frey <dpfrey@gmail.com> Reported-by: Alex Villacís Lasso <a_villacis@palosanto.com> Tested-by: Alex Villacís Lasso <a_villacis@palosanto.com> Fixes: f61309d9c96a ("USB: serial: cp210x: set IXOFF thresholds") Cc: stable@vger.kernel.org # 5.12 Signed-off-by: Johan Hovold <johan@kernel.org>
2021-06-10USB: serial: cp210x: fix alternate function for CP2102N QFN20Stefan Agner
The QFN20 part has a different GPIO/port function assignment. The configuration struct bit field ordered as TX/RX/RS485/WAKEUP/CLK which exactly matches GPIO0-3 for QFN24/28. However, QFN20 has a different GPIO to primary function assignment. Special case QFN20 to follow to properly detect which GPIOs are available. Signed-off-by: Stefan Agner <stefan@agner.ch> Link: https://lore.kernel.org/r/51830b2b24118eb0f77c5c9ac64ffb2f519dbb1d.1622218300.git.stefan@agner.ch Fixes: c8acfe0aadbe ("USB: serial: cp210x: implement GPIO support for CP2102N") Cc: stable@vger.kernel.org # 4.19 Signed-off-by: Johan Hovold <johan@kernel.org>
2021-04-12USB: serial: cp210x: add gpio-configuration debug printkJohan Hovold
Add a debug printk to dump the GPIO configuration stored in EEPROM during probe. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-04-12USB: serial: cp210x: provide gpio valid maskJohan Hovold
Use the new GPIO valid-mask feature to inform gpiolib which pins are available for use instead of handling that in a request callback. This also allows user space to figure out which pins are available through the chardev interface without having to request each pin in turn. Note that the return value when requesting an unavailable pin will now be -EINVAL instead of -ENODEV. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-03-09USB: serial: cp210x: add some more GE USB IDsSebastian Reichel
GE CS1000 has some more custom USB IDs for CP2102N; add them to the driver to have working auto-probing. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2021-03-09USB: serial: cp210x: add ID for Acuity Brands nLight Air AdapterKaran Singhal
IDs of nLight Air Adapter, Acuity Brands, Inc.: vid: 10c4 pid: 88d8 Signed-off-by: Karan Singhal <karan.singhal@acuitybrands.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2021-02-10Merge tag 'usb-serial-5.12-rc1' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next Johan writes: USB-serial updates for 5.12-rc1 Here are the USB-serial updates for 5.12-rc1, including: - a line-speed fix for newer pl2303 devices - a line-speed fix for FTDI FT-X devices - a new xr_serial driver for MaxLinear/Exar devices (non-ACM mode) - a cdc-acm blacklist entry for when the xr_serial driver is enabled - cp210x support for software flow control - various cp210x modem-control fixes - an updated ZTE P685M modem entry to stop claiming the QMI interface - an update to drop the port_remove() driver-callback return value Included are also various clean ups. All have been in linux-next with no reported issues. * tag 'usb-serial-5.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial: (41 commits) USB: serial: drop bogus to_usb_serial_port() checks USB: serial: make remove callback return void USB: serial: drop if with an always false condition USB: serial: option: update interface mapping for ZTE P685M USB: serial: ftdi_sio: restore divisor-encoding comments USB: serial: ftdi_sio: fix FTX sub-integer prescaler USB: serial: cp210x: clean up auto-RTS handling USB: serial: cp210x: fix RTS handling USB: serial: cp210x: clean up printk zero padding USB: serial: cp210x: clean up flow-control debug message USB: serial: cp210x: drop shift macros USB: serial: cp210x: fix modem-control handling USB: serial: cp210x: suppress modem-control errors USB: serial: mos7720: fix error code in mos7720_write() USB: serial: xr: fix B0 handling USB: serial: xr: fix pin configuration USB: serial: xr: fix gpio-mode handling USB: serial: xr: simplify line-speed logic USB: serial: xr: clean up line-settings handling USB: serial: xr: document vendor-request recipient ...
2021-02-09USB: serial: make remove callback return voidUwe Kleine-König
All usb_serial drivers return 0 in their remove callbacks and driver core ignores the value returned by usb_serial_device_remove(). So change the remove callback to return void and return 0 unconditionally in usb_serial_device_remove(). Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Link: https://lore.kernel.org/r/20210208143149.963644-2-uwe@kleine-koenig.org Signed-off-by: Johan Hovold <johan@kernel.org>
2021-02-01USB: serial: cp210x: clean up auto-RTS handlingJohan Hovold
Clear the RTS bits of the flow-control request before determining the new value when updating the settings. Signed-off-by: Johan Hovold <johan@kernel.org>
2021-02-01USB: serial: cp210x: fix RTS handlingJohan Hovold
Clearing TIOCM_RTS should always deassert RTS and setting the same bit should enable auto-RTS if hardware flow control is enabled. This allows user space to throttle input directly at the source also when hardware-assisted flow control is enabled and makes dtr_rts() always deassert both lines during close (when HUPCL is set). Signed-off-by: Johan Hovold <johan@kernel.org>
2021-02-01USB: serial: cp210x: clean up printk zero paddingJohan Hovold
Use the 0-flag and a field width to specify zero-padding consistently in printk messages. Signed-off-by: Johan Hovold <johan@kernel.org>
2021-02-01USB: serial: cp210x: clean up flow-control debug messageJohan Hovold
Shorten the flow-control debug message by abbreviating the field names and reducing the value width to two characters. The latter improves readability since all but the least significant byte will almost always be zero anyway. Signed-off-by: Johan Hovold <johan@kernel.org>
2021-02-01USB: serial: cp210x: drop shift macrosJohan Hovold
Drop the macros used to shift the flow-control settings to make the code more readable for consistency with the other requests. Signed-off-by: Johan Hovold <johan@kernel.org>
2021-02-01USB: serial: cp210x: fix modem-control handlingJohan Hovold
The vendor request used to set the flow-control settings also sets the state of the modem-control lines. Add state variables to keep track of the modem-control lines to avoid always asserting the lines whenever the flow-control settings are updated. This specifically also avoids asserting DTR/RTS when opening a port with the line speed set to B0. Signed-off-by: Johan Hovold <johan@kernel.org>
2021-02-01USB: serial: cp210x: suppress modem-control errorsJohan Hovold
The CP210X_SET_MHS request cannot be used to control RTS when hardware flow control (auto-RTS) is enabled and instead returns an error which is currently logged as: cp210x ttyUSB0: failed set request 0x7 status: -32 when opening and closing a port (and on TIOCMSET requests). Add a crtscts flag to keep track of the hardware flow-control setting and use it to suppress any request to change RTS when auto-RTS is enabled. Note that RTS is still deasserted when disabling the UART as part of close. Reported-by: Pho Tran <pho.tran@silabs.com> Signed-off-by: Johan Hovold <johan@kernel.org>
2021-01-25USB: serial: cp210x: add pid/vid for WSDA-200-USBPho Tran
Information pid/vid of WSDA-200-USB, Lord corporation company: vid: 199b pid: ba30 Signed-off-by: Pho Tran <pho.tran@silabs.com> [ johan: amend comment with product name ] Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
generated by cgit (git 2.34.1) at 2025-04-18 01:42:12 +0000