| /* |
| * Wacom W8001 penabled serial touchscreen driver |
| * |
| * Copyright (c) 2008 Jaya Kumar |
| * Copyright (c) 2010 Red Hat, Inc. |
| * Copyright (c) 2010 - 2011 Ping Cheng, Wacom. <pingc@wacom.com> |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file COPYING in the main directory of this archive for |
| * more details. |
| * |
| * Layout based on Elo serial touchscreen driver by Vojtech Pavlik |
| */ |
| |
| #include <linux/errno.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/input/mt.h> |
| #include <linux/serio.h> |
| #include <linux/ctype.h> |
| #include <linux/delay.h> |
| |
| #define DRIVER_DESC "Wacom W8001 serial touchscreen driver" |
| |
| MODULE_AUTHOR("Jaya Kumar <jayakumar.lkml@gmail.com>"); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE("GPL"); |
| |
| #define W8001_MAX_PHYS 42 |
| |
| #define W8001_MAX_LENGTH 13 |
| #define W8001_LEAD_MASK 0x80 |
| #define W8001_LEAD_BYTE 0x80 |
| #define W8001_TAB_MASK 0x40 |
| #define W8001_TAB_BYTE 0x40 |
| /* set in first byte of touch data packets */ |
| #define W8001_TOUCH_MASK (0x10 | W8001_LEAD_MASK) |
| #define W8001_TOUCH_BYTE (0x10 | W8001_LEAD_BYTE) |
| |
| #define W8001_QUERY_PACKET 0x20 |
| |
| #define W8001_CMD_STOP '0' |
| #define W8001_CMD_START '1' |
| #define W8001_CMD_QUERY '*' |
| #define W8001_CMD_TOUCHQUERY '%' |
| |
| /* length of data packets in bytes, depends on device. */ |
| #define W8001_PKTLEN_TOUCH93 5 |
| #define W8001_PKTLEN_TOUCH9A 7 |
| #define W8001_PKTLEN_TPCPEN 9 |
| #define W8001_PKTLEN_TPCCTL 11 /* control packet */ |
| #define W8001_PKTLEN_TOUCH2FG 13 |
| |
| /* resolution in points/mm */ |
| #define W8001_PEN_RESOLUTION 100 |
| #define W8001_TOUCH_RESOLUTION 10 |
| |
| struct w8001_coord { |
| u8 rdy; |
| u8 tsw; |
| u8 f1; |
| u8 f2; |
| u16 x; |
| u16 y; |
| u16 pen_pressure; |
| u8 tilt_x; |
| u8 tilt_y; |
| }; |
| |
| /* touch query reply packet */ |
| struct w8001_touch_query { |
| u16 x; |
| u16 y; |
| u8 panel_res; |
| u8 capacity_res; |
| u8 sensor_id; |
| }; |
| |
| /* |
| * Per-touchscreen data. |
| */ |
| |
| struct w8001 { |
| struct input_dev *pen_dev; |
| struct input_dev *touch_dev; |
| struct serio *serio; |
| struct completion cmd_done; |
| int id; |
| int idx; |
| unsigned char response_type; |
| unsigned char response[W8001_MAX_LENGTH]; |
| unsigned char data[W8001_MAX_LENGTH]; |
| char phys[W8001_MAX_PHYS]; |
| int type; |
| unsigned int pktlen; |
| u16 max_touch_x; |
| u16 max_touch_y; |
| u16 max_pen_x; |
| u16 max_pen_y; |
| char pen_name[64]; |
| char touch_name[64]; |
| int open_count; |
| struct mutex mutex; |
| }; |
| |
| static void parse_pen_data(u8 *data, struct w8001_coord *coord) |
| { |
| memset(coord, 0, sizeof(*coord)); |
| |
| coord->rdy = data[0] & 0x20; |
| coord->tsw = data[0] & 0x01; |
| coord->f1 = data[0] & 0x02; |
| coord->f2 = data[0] & 0x04; |
| |
| coord->x = (data[1] & 0x7F) << 9; |
| coord->x |= (data[2] & 0x7F) << 2; |
| coord->x |= (data[6] & 0x60) >> 5; |
| |
| coord->y = (data[3] & 0x7F) << 9; |
| coord->y |= (data[4] & 0x7F) << 2; |
| coord->y |= (data[6] & 0x18) >> 3; |
| |
| coord->pen_pressure = data[5] & 0x7F; |
| coord->pen_pressure |= (data[6] & 0x07) << 7 ; |
| |
| coord->tilt_x = data[7] & 0x7F; |
| coord->tilt_y = data[8] & 0x7F; |
| } |
| |
| static void parse_single_touch(u8 *data, struct w8001_coord *coord) |
| { |
| coord->x = (data[1] << 7) | data[2]; |
| coord->y = (data[3] << 7) | data[4]; |
| coord->tsw = data[0] & 0x01; |
| } |
| |
| static void scale_touch_coordinates(struct w8001 *w8001, |
| unsigned int *x, unsigned int *y) |
| { |
| if (w8001->max_pen_x && w8001->max_touch_x) |
| *x = *x * w8001->max_pen_x / w8001->max_touch_x; |
| |
| if (w8001->max_pen_y && w8001->max_touch_y) |
| *y = *y * w8001->max_pen_y / w8001->max_touch_y; |
| } |
| |
| static void parse_multi_touch(struct w8001 *w8001) |
| { |
| struct input_dev *dev = w8001->touch_dev; |
| unsigned char *data = w8001->data; |
| unsigned int x, y; |
| int i; |
| int count = 0; |
| |
| for (i = 0; i < 2; i++) { |
| bool touch = data[0] & (1 << i); |
| |
| input_mt_slot(dev, i); |
| input_mt_report_slot_state(dev, MT_TOOL_FINGER, touch); |
| if (touch) { |
| x = (data[6 * i + 1] << 7) | data[6 * i + 2]; |
| y = (data[6 * i + 3] << 7) | data[6 * i + 4]; |
| /* data[5,6] and [11,12] is finger capacity */ |
| |
| /* scale to pen maximum */ |
| scale_touch_coordinates(w8001, &x, &y); |
| |
| input_report_abs(dev, ABS_MT_POSITION_X, x); |
| input_report_abs(dev, ABS_MT_POSITION_Y, y); |
| count++; |
| } |
| } |
| |
| /* emulate single touch events when stylus is out of proximity. |
| * This is to make single touch backward support consistent |
| * across all Wacom single touch devices. |
| */ |
| if (w8001->type != BTN_TOOL_PEN && |
| w8001->type != BTN_TOOL_RUBBER) { |
| w8001->type = count == 1 ? BTN_TOOL_FINGER : KEY_RESERVED; |
| input_mt_report_pointer_emulation(dev, true); |
| } |
| |
| input_sync(dev); |
| } |
| |
| static void parse_touchquery(u8 *data, struct w8001_touch_query *query) |
| { |
| memset(query, 0, sizeof(*query)); |
| |
| query->panel_res = data[1]; |
| query->sensor_id = data[2] & 0x7; |
| query->capacity_res = data[7]; |
| |
| query->x = data[3] << 9; |
| query->x |= data[4] << 2; |
| query->x |= (data[2] >> 5) & 0x3; |
| |
| query->y = data[5] << 9; |
| query->y |= data[6] << 2; |
| query->y |= (data[2] >> 3) & 0x3; |
| |
| /* Early days' single-finger touch models need the following defaults */ |
| if (!query->x && !query->y) { |
| query->x = 1024; |
| query->y = 1024; |
| if (query->panel_res) |
| query->x = query->y = (1 << query->panel_res); |
| query->panel_res = W8001_TOUCH_RESOLUTION; |
| } |
| } |
| |
| static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord) |
| { |
| struct input_dev *dev = w8001->pen_dev; |
| |
| /* |
| * We have 1 bit for proximity (rdy) and 3 bits for tip, side, |
| * side2/eraser. If rdy && f2 are set, this can be either pen + side2, |
| * or eraser. Assume: |
| * - if dev is already in proximity and f2 is toggled → pen + side2 |
| * - if dev comes into proximity with f2 set → eraser |
| * If f2 disappears after assuming eraser, fake proximity out for |
| * eraser and in for pen. |
| */ |
| |
| switch (w8001->type) { |
| case BTN_TOOL_RUBBER: |
| if (!coord->f2) { |
| input_report_abs(dev, ABS_PRESSURE, 0); |
| input_report_key(dev, BTN_TOUCH, 0); |
| input_report_key(dev, BTN_STYLUS, 0); |
| input_report_key(dev, BTN_STYLUS2, 0); |
| input_report_key(dev, BTN_TOOL_RUBBER, 0); |
| input_sync(dev); |
| w8001->type = BTN_TOOL_PEN; |
| } |
| break; |
| |
| case BTN_TOOL_FINGER: |
| case KEY_RESERVED: |
| w8001->type = coord->f2 ? BTN_TOOL_RUBBER : BTN_TOOL_PEN; |
| break; |
| |
| default: |
| input_report_key(dev, BTN_STYLUS2, coord->f2); |
| break; |
| } |
| |
| input_report_abs(dev, ABS_X, coord->x); |
| input_report_abs(dev, ABS_Y, coord->y); |
| input_report_abs(dev, ABS_PRESSURE, coord->pen_pressure); |
| input_report_key(dev, BTN_TOUCH, coord->tsw); |
| input_report_key(dev, BTN_STYLUS, coord->f1); |
| input_report_key(dev, w8001->type, coord->rdy); |
| input_sync(dev); |
| |
| if (!coord->rdy) |
| w8001->type = KEY_RESERVED; |
| } |
| |
| static void report_single_touch(struct w8001 *w8001, struct w8001_coord *coord) |
| { |
| struct input_dev *dev = w8001->touch_dev; |
| unsigned int x = coord->x; |
| unsigned int y = coord->y; |
| |
| /* scale to pen maximum */ |
| scale_touch_coordinates(w8001, &x, &y); |
| |
| input_report_abs(dev, ABS_X, x); |
| input_report_abs(dev, ABS_Y, y); |
| input_report_key(dev, BTN_TOUCH, coord->tsw); |
| |
| input_sync(dev); |
| |
| w8001->type = coord->tsw ? BTN_TOOL_FINGER : KEY_RESERVED; |
| } |
| |
| static irqreturn_t w8001_interrupt(struct serio *serio, |
| unsigned char data, unsigned int flags) |
| { |
| struct w8001 *w8001 = serio_get_drvdata(serio); |
| struct w8001_coord coord; |
| unsigned char tmp; |
| |
| w8001->data[w8001->idx] = data; |
| switch (w8001->idx++) { |
| case 0: |
| if ((data & W8001_LEAD_MASK) != W8001_LEAD_BYTE) { |
| pr_debug("w8001: unsynchronized data: 0x%02x\n", data); |
| w8001->idx = 0; |
| } |
| break; |
| |
| case W8001_PKTLEN_TOUCH93 - 1: |
| case W8001_PKTLEN_TOUCH9A - 1: |
| tmp = w8001->data[0] & W8001_TOUCH_BYTE; |
| if (tmp != W8001_TOUCH_BYTE) |
| break; |
| |
| if (w8001->pktlen == w8001->idx) { |
| w8001->idx = 0; |
| if (w8001->type != BTN_TOOL_PEN && |
| w8001->type != BTN_TOOL_RUBBER) { |
| parse_single_touch(w8001->data, &coord); |
| report_single_touch(w8001, &coord); |
| } |
| } |
| break; |
| |
| /* Pen coordinates packet */ |
| case W8001_PKTLEN_TPCPEN - 1: |
| tmp = w8001->data[0] & W8001_TAB_MASK; |
| if (unlikely(tmp == W8001_TAB_BYTE)) |
| break; |
| |
| tmp = w8001->data[0] & W8001_TOUCH_BYTE; |
| if (tmp == W8001_TOUCH_BYTE) |
| break; |
| |
| w8001->idx = 0; |
| parse_pen_data(w8001->data, &coord); |
| report_pen_events(w8001, &coord); |
| break; |
| |
| /* control packet */ |
| case W8001_PKTLEN_TPCCTL - 1: |
| tmp = w8001->data[0] & W8001_TOUCH_MASK; |
| if (tmp == W8001_TOUCH_BYTE) |
| break; |
| |
| w8001->idx = 0; |
| memcpy(w8001->response, w8001->data, W8001_MAX_LENGTH); |
| w8001->response_type = W8001_QUERY_PACKET; |
| complete(&w8001->cmd_done); |
| break; |
| |
| /* 2 finger touch packet */ |
| case W8001_PKTLEN_TOUCH2FG - 1: |
| w8001->idx = 0; |
| parse_multi_touch(w8001); |
| break; |
| |
| default: |
| /* |
| * ThinkPad X60 Tablet PC (pen only device) sometimes |
| * sends invalid data packets that are larger than |
| * W8001_PKTLEN_TPCPEN. Let's start over again. |
| */ |
| if (!w8001->touch_dev && w8001->idx > W8001_PKTLEN_TPCPEN - 1) |
| w8001->idx = 0; |
| } |
| |
| return IRQ_HANDLED; |
| } |
| |
| static int w8001_command(struct w8001 *w8001, unsigned char command, |
| bool wait_response) |
| { |
| int rc; |
| |
| w8001->response_type = 0; |
| init_completion(&w8001->cmd_done); |
| |
| rc = serio_write(w8001->serio, command); |
| if (rc == 0 && wait_response) { |
| |
| wait_for_completion_timeout(&w8001->cmd_done, HZ); |
| if (w8001->response_type != W8001_QUERY_PACKET) |
| rc = -EIO; |
| } |
| |
| return rc; |
| } |
| |
| static int w8001_open(struct input_dev *dev) |
| { |
| struct w8001 *w8001 = input_get_drvdata(dev); |
| int err; |
| |
| err = mutex_lock_interruptible(&w8001->mutex); |
| if (err) |
| return err; |
| |
| if (w8001->open_count++ == 0) { |
| err = w8001_command(w8001, W8001_CMD_START, false); |
| if (err) |
| w8001->open_count--; |
| } |
| |
| mutex_unlock(&w8001->mutex); |
| return err; |
| } |
| |
| static void w8001_close(struct input_dev *dev) |
| { |
| struct w8001 *w8001 = input_get_drvdata(dev); |
| |
| mutex_lock(&w8001->mutex); |
| |
| if (--w8001->open_count == 0) |
| w8001_command(w8001, W8001_CMD_STOP, false); |
| |
| mutex_unlock(&w8001->mutex); |
| } |
| |
| static int w8001_detect(struct w8001 *w8001) |
| { |
| int error; |
| |
| error = w8001_command(w8001, W8001_CMD_STOP, false); |
| if (error) |
| return error; |
| |
| msleep(250); /* wait 250ms before querying the device */ |
| |
| return 0; |
| } |
| |
| static int w8001_setup_pen(struct w8001 *w8001, char *basename, |
| size_t basename_sz) |
| { |
| struct input_dev *dev = w8001->pen_dev; |
| struct w8001_coord coord; |
| int error; |
| |
| /* penabled? */ |
| error = w8001_command(w8001, W8001_CMD_QUERY, true); |
| if (error) |
| return error; |
| |
| __set_bit(EV_KEY, dev->evbit); |
| __set_bit(EV_ABS, dev->evbit); |
| __set_bit(BTN_TOUCH, dev->keybit); |
| __set_bit(BTN_TOOL_PEN, dev->keybit); |
| __set_bit(BTN_TOOL_RUBBER, dev->keybit); |
| __set_bit(BTN_STYLUS, dev->keybit); |
| __set_bit(BTN_STYLUS2, dev->keybit); |
| __set_bit(INPUT_PROP_DIRECT, dev->propbit); |
| |
| parse_pen_data(w8001->response, &coord); |
| w8001->max_pen_x = coord.x; |
| w8001->max_pen_y = coord.y; |
| |
| input_set_abs_params(dev, ABS_X, 0, coord.x, 0, 0); |
| input_set_abs_params(dev, ABS_Y, 0, coord.y, 0, 0); |
| input_abs_set_res(dev, ABS_X, W8001_PEN_RESOLUTION); |
| input_abs_set_res(dev, ABS_Y, W8001_PEN_RESOLUTION); |
| input_set_abs_params(dev, ABS_PRESSURE, 0, coord.pen_pressure, 0, 0); |
| if (coord.tilt_x && coord.tilt_y) { |
| input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0); |
| input_set_abs_params(dev, ABS_TILT_Y, 0, coord.tilt_y, 0, 0); |
| } |
| |
| w8001->id = 0x90; |
| strlcat(basename, " Penabled", basename_sz); |
| |
| return 0; |
| } |
| |
| static int w8001_setup_touch(struct w8001 *w8001, char *basename, |
| size_t basename_sz) |
| { |
| struct input_dev *dev = w8001->touch_dev; |
| struct w8001_touch_query touch; |
| int error; |
| |
| |
| /* Touch enabled? */ |
| error = w8001_command(w8001, W8001_CMD_TOUCHQUERY, true); |
| if (error) |
| return error; |
| /* |
| * Some non-touch devices may reply to the touch query. But their |
| * second byte is empty, which indicates touch is not supported. |
| */ |
| if (!w8001->response[1]) |
| return -ENXIO; |
| |
| __set_bit(EV_KEY, dev->evbit); |
| __set_bit(EV_ABS, dev->evbit); |
| __set_bit(BTN_TOUCH, dev->keybit); |
| __set_bit(INPUT_PROP_DIRECT, dev->propbit); |
| |
| parse_touchquery(w8001->response, &touch); |
| w8001->max_touch_x = touch.x; |
| w8001->max_touch_y = touch.y; |
| |
| if (w8001->max_pen_x && w8001->max_pen_y) { |
| /* if pen is supported scale to pen maximum */ |
| touch.x = w8001->max_pen_x; |
| touch.y = w8001->max_pen_y; |
| touch.panel_res = W8001_PEN_RESOLUTION; |
| } |
| |
| input_set_abs_params(dev, ABS_X, 0, touch.x, 0, 0); |
| input_set_abs_params(dev, ABS_Y, 0, touch.y, 0, 0); |
| input_abs_set_res(dev, ABS_X, touch.panel_res); |
| input_abs_set_res(dev, ABS_Y, touch.panel_res); |
| |
| switch (touch.sensor_id) { |
| case 0: |
| case 2: |
| w8001->pktlen = W8001_PKTLEN_TOUCH93; |
| w8001->id = 0x93; |
| strlcat(basename, " 1FG", basename_sz); |
| break; |
| |
| case 1: |
| case 3: |
| case 4: |
| w8001->pktlen = W8001_PKTLEN_TOUCH9A; |
| strlcat(basename, " 1FG", basename_sz); |
| w8001->id = 0x9a; |
| break; |
| |
| case 5: |
| w8001->pktlen = W8001_PKTLEN_TOUCH2FG; |
| |
| __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
| error = input_mt_init_slots(dev, 2, 0); |
| if (error) { |
| dev_err(&w8001->serio->dev, |
| "failed to initialize MT slots: %d\n", error); |
| return error; |
| } |
| |
| input_set_abs_params(dev, ABS_MT_POSITION_X, |
| 0, touch.x, 0, 0); |
| input_set_abs_params(dev, ABS_MT_POSITION_Y, |
| 0, touch.y, 0, 0); |
| input_set_abs_params(dev, ABS_MT_TOOL_TYPE, |
| 0, MT_TOOL_MAX, 0, 0); |
| input_abs_set_res(dev, ABS_MT_POSITION_X, touch.panel_res); |
| input_abs_set_res(dev, ABS_MT_POSITION_Y, touch.panel_res); |
| |
| strlcat(basename, " 2FG", basename_sz); |
| if (w8001->max_pen_x && w8001->max_pen_y) |
| w8001->id = 0xE3; |
| else |
| w8001->id = 0xE2; |
| break; |
| } |
| |
| strlcat(basename, " Touchscreen", basename_sz); |
| |
| return 0; |
| } |
| |
| static void w8001_set_devdata(struct input_dev *dev, struct w8001 *w8001, |
| struct serio *serio) |
| { |
| dev->phys = w8001->phys; |
| dev->id.bustype = BUS_RS232; |
| dev->id.product = w8001->id; |
| dev->id.vendor = 0x056a; |
| dev->id.version = 0x0100; |
| dev->open = w8001_open; |
| dev->close = w8001_close; |
| |
| dev->dev.parent = &serio->dev; |
| |
| input_set_drvdata(dev, w8001); |
| } |
| |
| /* |
| * w8001_disconnect() is the opposite of w8001_connect() |
| */ |
| |
| static void w8001_disconnect(struct serio *serio) |
| { |
| struct w8001 *w8001 = serio_get_drvdata(serio); |
| |
| serio_close(serio); |
| |
| if (w8001->pen_dev) |
| input_unregister_device(w8001->pen_dev); |
| if (w8001->touch_dev) |
| input_unregister_device(w8001->touch_dev); |
| kfree(w8001); |
| |
| serio_set_drvdata(serio, NULL); |
| } |
| |
| /* |
| * w8001_connect() is the routine that is called when someone adds a |
| * new serio device that supports the w8001 protocol and registers it as |
| * an input device. |
| */ |
| |
| static int w8001_connect(struct serio *serio, struct serio_driver *drv) |
| { |
| struct w8001 *w8001; |
| struct input_dev *input_dev_pen; |
| struct input_dev *input_dev_touch; |
| char basename[64]; |
| int err, err_pen, err_touch; |
| |
| w8001 = kzalloc(sizeof(struct w8001), GFP_KERNEL); |
| input_dev_pen = input_allocate_device(); |
| input_dev_touch = input_allocate_device(); |
| if (!w8001 || !input_dev_pen || !input_dev_touch) { |
| err = -ENOMEM; |
| goto fail1; |
| } |
| |
| w8001->serio = serio; |
| w8001->pen_dev = input_dev_pen; |
| w8001->touch_dev = input_dev_touch; |
| mutex_init(&w8001->mutex); |
| init_completion(&w8001->cmd_done); |
| snprintf(w8001->phys, sizeof(w8001->phys), "%s/input0", serio->phys); |
| |
| serio_set_drvdata(serio, w8001); |
| err = serio_open(serio, drv); |
| if (err) |
| goto fail2; |
| |
| err = w8001_detect(w8001); |
| if (err) |
| goto fail3; |
| |
| /* For backwards-compatibility we compose the basename based on |
| * capabilities and then just append the tool type |
| */ |
| strscpy(basename, "Wacom Serial", sizeof(basename)); |
| |
| err_pen = w8001_setup_pen(w8001, basename, sizeof(basename)); |
| err_touch = w8001_setup_touch(w8001, basename, sizeof(basename)); |
| if (err_pen && err_touch) { |
| err = -ENXIO; |
| goto fail3; |
| } |
| |
| if (!err_pen) { |
| strscpy(w8001->pen_name, basename, sizeof(w8001->pen_name)); |
| strlcat(w8001->pen_name, " Pen", sizeof(w8001->pen_name)); |
| input_dev_pen->name = w8001->pen_name; |
| |
| w8001_set_devdata(input_dev_pen, w8001, serio); |
| |
| err = input_register_device(w8001->pen_dev); |
| if (err) |
| goto fail3; |
| } else { |
| input_free_device(input_dev_pen); |
| input_dev_pen = NULL; |
| w8001->pen_dev = NULL; |
| } |
| |
| if (!err_touch) { |
| strscpy(w8001->touch_name, basename, sizeof(w8001->touch_name)); |
| strlcat(w8001->touch_name, " Finger", |
| sizeof(w8001->touch_name)); |
| input_dev_touch->name = w8001->touch_name; |
| |
| w8001_set_devdata(input_dev_touch, w8001, serio); |
| |
| err = input_register_device(w8001->touch_dev); |
| if (err) |
| goto fail4; |
| } else { |
| input_free_device(input_dev_touch); |
| input_dev_touch = NULL; |
| w8001->touch_dev = NULL; |
| } |
| |
| return 0; |
| |
| fail4: |
| if (w8001->pen_dev) |
| input_unregister_device(w8001->pen_dev); |
| fail3: |
| serio_close(serio); |
| fail2: |
| serio_set_drvdata(serio, NULL); |
| fail1: |
| input_free_device(input_dev_pen); |
| input_free_device(input_dev_touch); |
| kfree(w8001); |
| return err; |
| } |
| |
| static const struct serio_device_id w8001_serio_ids[] = { |
| { |
| .type = SERIO_RS232, |
| .proto = SERIO_W8001, |
| .id = SERIO_ANY, |
| .extra = SERIO_ANY, |
| }, |
| { 0 } |
| }; |
| |
| MODULE_DEVICE_TABLE(serio, w8001_serio_ids); |
| |
| static struct serio_driver w8001_drv = { |
| .driver = { |
| .name = "w8001", |
| }, |
| .description = DRIVER_DESC, |
| .id_table = w8001_serio_ids, |
| .interrupt = w8001_interrupt, |
| .connect = w8001_connect, |
| .disconnect = w8001_disconnect, |
| }; |
| |
| module_serio_driver(w8001_drv); |