Hello,
I've ported the old sl811_cs driver to use the new sl811-hcd code in 2.6.
There are quite a few people with the RATOC REX-CFU1 usb compact flash
card on PDAs who would benefit from this.
I have tested the driver on arm (zaurus) and works well.
I had to make a few changes to the sl811-hcd code in order to work with
the pcmcia driver.
As noted in the thread[1] on lkml, I had to make the same tweaks in order
to get the hcd code working.
There is still one issue I found though: when "urb->hcpriv = hep" is
uncommented in sl811h_urb_enqueue(), transfers don't work. Without this
line, everything seems to be working well, except when I connect then
disconnect an external hub, I get the following error from
sl811h_endpoint_disable() and khubd goes into DW:
sl811: ep c1d36da0 not empty?
I tested some other usb-storage devices and this error didn't occur on
disconnect.
Patch against 2.6.12-rc4-mm1 is attached.
[1] http://lkml.org/lkml/2005/2/14/110
diff -aurN linux.orig/drivers/usb/host/Kconfig
linux.new/drivers/usb/host/Kconfig
--- linux.orig/drivers/usb/host/Kconfig 2005-05-14 14:52:48.000000000 +0200
+++ linux.new/drivers/usb/host/Kconfig 2005-05-14 15:18:49.000000000 +0200
@@ -137,3 +137,11 @@
To compile this driver as a module, choose M here: the
module will be called sl811-hcd.
+config USB_SL811_CS
+ tristate "PCMCIA support for SL811HS HCD"
+ depends on USB_SL811_HCD && PCMCIA
+ default N
+ help
+ Enables support for PCMCIA cards with the SL811HS USB controller
+ such as the RATOC REX-CFU1 CF card.
+ If unsure, say N.
diff -aurN linux.orig/drivers/usb/host/Makefile
linux.new/drivers/usb/host/Makefile
--- linux.orig/drivers/usb/host/Makefile 2005-05-14 14:52:48.000000000
+0200
+++ linux.new/drivers/usb/host/Makefile 2005-05-14 14:57:59.000000000 +0200
@@ -8,4 +8,5 @@
obj-$(CONFIG_USB_OHCI_HCD) += ohci-hcd.o
obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o
obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o
+obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o
obj-$(CONFIG_ETRAX_ARCH_V10) += hc_crisv10.o
diff -aurN linux.orig/drivers/usb/host/sl811_cs.c
linux.new/drivers/usb/host/sl811_cs.c
--- linux.orig/drivers/usb/host/sl811_cs.c 1970-01-01 01:00:00.000000000
+0100
+++ linux.new/drivers/usb/host/sl811_cs.c 2005-05-13 17:59:56.000000000
+0200
@@ -0,0 +1,465 @@
+/*
+ PCMCIA driver for SL811
+ Filename: sl811_cs.c
+ Author: Yukio Yamamoto
+
+ Port to sl811-hcd and 2.6.x by
+ Botond Botyanszki <boti()rocketmail.com>
+ Simon Pickering
+
+ Last update: 2005-05-12
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+
+#include <linux/usb_sl811.h>
+
+MODULE_AUTHOR("Botond Botyanszki");
+MODULE_DESCRIPTION("REX-CFU1 PCMCIA driver for 2.6");
+MODULE_LICENSE("GPL");
+
+
+/*====================================================================*/
+/* MACROS */
+/*====================================================================*/
+
+#if defined(DEBUG) || defined(CONFIG_USB_DEBUG) || defined(PCMCIA_DEBUG)
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+module_param(pc_debug, int, 0);
+static char *version = "sl811_cs.c 0.4 2005/05/12 19:37:14 (Botond
Botyanszki)";
+#define DBG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
+#else
+#define DBG(n, args...) printk(KERN_DEBUG "sl811_cs: " args)
+#endif
+#else
+#define DBG(n, args...) do{}while(0)
+#endif
+
+#define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
+
+#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444)
+
+#define CS_CHECK(fn, ret) \
+ do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; }
while (0)
+
+/*====================================================================*/
+/* VARIABLES */
+/*====================================================================*/
+
+static dev_info_t dev_info = "sl811_cs";
+static dev_link_t *dev_list = NULL;
+
+static ioaddr_t base_addr = 0x00000000;
+static int irq = -1;
+
+static int irq_list[4] = { -1 };
+static int irq_list_count;
+module_param_array(irq_list, int, &irq_list_count, 0444);
+INT_MODULE_PARM(free_ports, 0);
+INT_MODULE_PARM(irq_mask, 0xdeb8);
+
+/*====================================================================*/
+/* PROTO TYPES */
+/*====================================================================*/
+
+static dev_link_t* sl811_cs_attach(void);
+static void sl811_cs_detach(dev_link_t *);
+static void sl811_cs_config(dev_link_t *link);
+static void sl811_cs_release(dev_link_t *arg);
+static int sl811_cs_event(event_t event, int priority,
+ event_callback_args_t *args);
+
+/*====================================================================*/
+/* PROTO TYPES */
+/*====================================================================*/
+
+typedef struct local_info_t {
+ dev_link_t link;
+ dev_node_t node;
+} local_info_t;
+
+static struct pcmcia_driver sl811_cs_driver = {
+ .owner = THIS_MODULE,
+ .drv = {
+ .name = "sl811_cs",
+ },
+ .attach = sl811_cs_attach,
+ .detach = sl811_cs_detach,
+};
+
+/*====================================================================*/
+int sl811h_probe(void *dev);
+extern struct device_driver sl811h_driver;
+
+/*====================================================================*/
+
+/*====================================================================*/
+static void release_platform_dev(struct device * dev) {
+ DBG(0, "sl811_cs platform_dev release\n");
+}
+
+static struct sl811_platform_data platform_data;
+static struct resource resources[] = {
+ [0] = {
+ .flags = IORESOURCE_IRQ,
+ },
+ [1] = {
+ .flags = IORESOURCE_MEM,
+ },
+ [2] = {
+ .flags = IORESOURCE_MEM,
+ },
+};
+static struct platform_device platform_dev = {
+ .name = "sl811_cs",
+ .id = 0,
+ .num_resources = 3,
+ .dev.dma_mask = 0,
+ .dev.platform_data = &platform_data,
+ .dev.bus_id = "sl811-hcd",
+ .dev.driver = &sl811h_driver,
+ .dev.release = release_platform_dev,
+ .resource = resources
+
+};
+
+
+/*====================================================================*/
+static dev_link_t *sl811_cs_attach(void)
+{
+ local_info_t *local;
+ dev_link_t *link;
+ client_reg_t client_reg;
+ int ret, i;
+
+ local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
+ if (!local) return NULL;
+ memset(local, 0, sizeof(local_info_t));
+ link = &local->link; link->priv = local;
+
+ /* Initialize */
+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+ link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
+ if (irq_list[0] == -1)
+ link->irq.IRQInfo2 = irq_mask;
+ else
+ for (i = 0; i < irq_list_count; i++)
+ link->irq.IRQInfo2 |= 1 << irq_list[i];
+ link->irq.Handler = NULL;
+
+ link->conf.Attributes = 0;
+ link->conf.Vcc = 33;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+
+ /* Register with Card Services */
+ link->next = dev_list;
+ dev_list = link;
+ client_reg.dev_info = &dev_info;
+ client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
+ client_reg.EventMask =
+ CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+ CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+ CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+ client_reg.event_handler = &sl811_cs_event;
+ client_reg.Version = 0x0210;
+ client_reg.event_callback_args.client_data = link;
+ ret = pcmcia_register_client(&link->handle, &client_reg);
+ if (ret != CS_SUCCESS) {
+ cs_error(link->handle, RegisterClient, ret);
+ sl811_cs_detach(link);
+ return NULL;
+ }
+
+ return link;
+} /* sl811_cs_attach */
+
+/*====================================================================*/
+static void sl811_cs_detach(dev_link_t *link)
+{
+ dev_link_t **linkp;
+
+ DBG(0, "sl811_cs_detach(0x%p)\n", link);
+
+ /* Locate device structure */
+ for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+ if (*linkp == link) break;
+ if (*linkp == NULL)
+ return;
+
+ /* Break the link with Card Services */
+ if (link->handle)
+ pcmcia_deregister_client(link->handle);
+
+ /* Unlink device structure, and free it */
+ *linkp = link->next;
+ /* This points to the parent local_info_t struct */
+ kfree(link->priv);
+
+} /* sl811_cs_detach */
+
+
+/*====================================================================*/
+static int sl811_hc_init(void)
+{
+ /* set up the device structure */
+ resources[0].start = irq;
+ resources[1].start = base_addr;
+ resources[1].end = base_addr;
+ resources[2].start = base_addr + 1;
+ resources[2].end = base_addr + 256;
+
+ platform_device_register(&platform_dev);
+
+ /* try to initialize the host controller */
+ if (sl811h_probe(&platform_dev.dev) != 0) {
+ DBG(0, "sl811h_probe() failed!\n");
+ return 0;
+ }
+ return 1;
+}
+
+
+/*====================================================================*/
+static void sl811_cs_config(dev_link_t *link)
+{
+ client_handle_t handle = link->handle;
+ local_info_t *dev = link->priv;
+ tuple_t tuple;
+ cisparse_t parse;
+ int last_fn, last_ret;
+ u_char buf[64];
+ config_info_t conf;
+ cistpl_cftable_entry_t dflt = { 0 };
+
+ DBG(0, "sl811_cs_config(0x%p)\n", link);
+
+ tuple.DesiredTuple = CISTPL_CONFIG;
+ tuple.Attributes = 0;
+ tuple.TupleData = buf;
+ tuple.TupleDataMax = sizeof(buf);
+ tuple.TupleOffset = 0;
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
+ CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+ link->conf.ConfigBase = parse.config.base;
+ link->conf.Present = parse.config.rmask[0];
+
+ /* Configure card */
+ link->state |= DEV_CONFIG;
+
+ /* Look up the current Vcc */
+ CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle,
&conf));
+ link->conf.Vcc = conf.Vcc;
+
+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ while (1) {
+ cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
+ if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
+ pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
+ goto next_entry;
+
+ if (cfg->flags & CISTPL_CFTABLE_DEFAULT) {
+ dflt = *cfg;
+ }
+
+ if (cfg->index == 0) goto next_entry;
+
+ link->conf.ConfigIndex = cfg->index;
+
+ /* Does this card need audio output? */
+ if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
+ link->conf.Attributes |= CONF_ENABLE_SPKR;
+ link->conf.Status = CCSR_AUDIO_ENA;
+ }
+
+ /* Use power settings for Vcc and Vpp if present */
+ /* Note that the CIS values need to be rescaled */
+ if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
+ if (conf.Vcc !=
cfg->vcc.param[CISTPL_POWER_VNOM]/10000) {
+ goto next_entry;
+ }
+ } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) {
+ if (conf.Vcc !=
dflt.vcc.param[CISTPL_POWER_VNOM]/10000) {
+ goto next_entry;
+ }
+ }
+
+ if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
+ link->conf.Vpp1 = link->conf.Vpp2 =
+ cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
+ else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
+ link->conf.Vpp1 = link->conf.Vpp2 =
+ dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
+
+ /* Do we need to allocate an interrupt? */
+ if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
+ link->conf.Attributes |= CONF_ENABLE_IRQ;
+
+ /* IO window settings */
+ link->io.NumPorts1 = link->io.NumPorts2 = 0;
+ if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
+ cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
+
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+ link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
+ link->io.BasePort1 = io->win[0].base;
+ link->io.NumPorts1 = io->win[0].len;
+
+ if (pcmcia_request_io(link->handle, &link->io) != 0)
+ goto next_entry;
+ }
+ break;
+
+ next_entry:
+ if (link->io.NumPorts1)
+ pcmcia_release_io(link->handle, &link->io);
+ last_ret = pcmcia_get_next_tuple(handle, &tuple);
+ }
+
+ if (link->conf.Attributes & CONF_ENABLE_IRQ)
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle,
&link->irq));
+
+ CS_CHECK(RequestConfiguration,
pcmcia_request_configuration(link->handle, &link->conf));
+
+ if (free_ports) {
+ if (link->io.BasePort1)
+ release_region(link->io.BasePort1, link->io.NumPorts1);
+ }
+
+ sprintf(dev->node.dev_name, "cf_usb0");
+ dev->node.major = dev->node.minor = 0;
+ link->dev = &dev->node;
+
+ printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d",
+ dev->node.dev_name, link->conf.ConfigIndex,
+ link->conf.Vcc/10, link->conf.Vcc%10);
+ if (link->conf.Vpp1)
+ printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10);
+ if (link->conf.Attributes & CONF_ENABLE_IRQ) {
+ printk(", irq %d", link->irq.AssignedIRQ);
+ irq = link->irq.AssignedIRQ;
+ }
+ if (link->io.NumPorts1) {
+ printk(", io 0x%04x-0x%04x", link->io.BasePort1,
+ link->io.BasePort1+link->io.NumPorts1-1);
+ base_addr = link->io.BasePort1;
+ }
+ printk("\n");
+
+ link->state &= ~DEV_CONFIG_PENDING;
+
+ if (sl811_hc_init() == 0) goto cs_failed;
+
+ return;
+
+ cs_failed:
+ printk("sl811_cs_config failed\n");
+ cs_error(link->handle, last_fn, last_ret);
+ sl811_cs_release(link);
+ link->state &= ~DEV_CONFIG_PENDING;
+
+} /* sl811_cs_config */
+
+/*====================================================================*/
+static void sl811_cs_release(dev_link_t * link)
+{
+
+ DBG(0, "sl811_cs_release(0x%p)\n", link);
+
+ if (link->open) {
+ DBG(1, "sl811_cs: release postponed, '%s' still open\n",
+ link->dev->dev_name);
+ link->state |= DEV_STALE_CONFIG;
+ return;
+ }
+
+ /* Unlink the device chain */
+ link->dev = NULL;
+
+ pcmcia_release_configuration(link->handle);
+ if (link->io.NumPorts1)
+ pcmcia_release_io(link->handle, &link->io);
+ if (link->irq.AssignedIRQ)
+ pcmcia_release_irq(link->handle, &link->irq);
+ link->state &= ~DEV_CONFIG;
+
+ if (link->state & DEV_STALE_LINK)
+ sl811_cs_detach(link);
+
+ platform_device_unregister(&platform_dev);
+
+} /* sl811_cs_release */
+
+/*====================================================================*/
+static int sl811_cs_event(event_t event, int priority, event_callback_args_t
*args)
+{
+ dev_link_t *link = args->client_data;
+
+ DBG(1, "sl811_cs_event(0x%06x)\n", event);
+
+ switch (event) {
+ case CS_EVENT_CARD_REMOVAL:
+ link->state &= ~DEV_PRESENT;
+ if (link->state & DEV_CONFIG) {
+ sl811_cs_release(link);
+ }
+ break;
+
+ case CS_EVENT_CARD_INSERTION:
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ sl811_cs_config(link);
+ break;
+
+ case CS_EVENT_PM_SUSPEND:
+ link->state |= DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_RESET_PHYSICAL:
+ if (link->state & DEV_CONFIG)
+ pcmcia_release_configuration(link->handle);
+ break;
+
+ case CS_EVENT_PM_RESUME:
+ link->state &= ~DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_CARD_RESET:
+ if (link->state & DEV_CONFIG)
+ pcmcia_request_configuration(link->handle, &link->conf);
+ DBG("reset sl811-hcd here?\n");
+ break;
+ }
+ return 0;
+} /* sl811_cs_event */
+
+/*====================================================================*/
+static int __init init_sl811_cs(void)
+{
+ return pcmcia_register_driver(&sl811_cs_driver);
+}
+
+/*====================================================================*/
+static void __exit exit_sl811_cs(void)
+{
+ pcmcia_unregister_driver(&sl811_cs_driver);
+}
+
+/*====================================================================*/
+
+module_init(init_sl811_cs);
+module_exit(exit_sl811_cs);
diff -aurN linux.orig/drivers/usb/host/sl811-hcd.c
linux.new/drivers/usb/host/sl811-hcd.c
--- linux.orig/drivers/usb/host/sl811-hcd.c 2005-05-14 14:52:49.000000000
+0200
+++ linux.new/drivers/usb/host/sl811-hcd.c 2005-05-14 14:59:45.000000000
+0200
@@ -83,8 +83,8 @@
*/
#define DISABLE_ISO
-// #define QUIRK2
-#define QUIRK3
+#define QUIRK2
+//#define QUIRK3
static const char hcd_name[] = "sl811-hcd";
@@ -127,6 +127,11 @@
sl811_write(sl811, SL811HS_CTLREG2, SL811HS_CTL2_INIT);
sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable);
+ /* reset */
+ sl811_write(sl811, SL11H_CTLREG1, SL11H_CTL1MASK_SE0);
+ mdelay(20);
+ sl811_write(sl811, SL11H_CTLREG1, 0);
+
// if !is_on, put into lowpower mode now
}
@@ -827,8 +832,11 @@
#endif
/* avoid all allocations within spinlocks */
- if (!hep->hcpriv)
+ if (!hep->hcpriv) {
ep = kcalloc(1, sizeof *ep, mem_flags);
+ /* set hep, otherwise sl811h_ep *start(struct sl811 *sl811, u8
bank) crashes */
+ ep->hep = hep;
+ }
spin_lock_irqsave(&sl811->lock, flags);
@@ -948,7 +956,8 @@
retval = 0;
goto fail;
}
- urb->hcpriv = hep;
+ /* transfers fail with the following uncommented */
+ /*urb->hcpriv = hep;*/
spin_unlock(&urb->lock);
start_transfer(sl811);
@@ -1555,6 +1564,7 @@
struct sl811 *sl811 = hcd_to_sl811(hcd);
/* chip has been reset, VBUS power is off */
+
hcd->state = HC_STATE_RUNNING;
if (sl811->board) {
@@ -1562,6 +1572,9 @@
hcd->power_budget = sl811->board->power * 2;
}
+ /* enable power and interupts */
+ port_power(sl811, 1);
+
return 0;
}
@@ -1610,20 +1623,22 @@
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct sl811 *sl811 = hcd_to_sl811(hcd);
struct platform_device *pdev;
+#ifndef CONFIG_USB_SL811_CS
struct resource *res;
-
+#endif
pdev = container_of(dev, struct platform_device, dev);
remove_debug_file(sl811);
usb_remove_hcd(hcd);
+#ifndef CONFIG_USB_SL811_CS
iounmap(sl811->data_reg);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
release_mem_region(res->start, 1);
-
iounmap(sl811->addr_reg);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, 1);
+#endif
usb_put_hcd(hcd);
return 0;
@@ -1631,8 +1646,7 @@
#define resource_len(r) (((r)->end - (r)->start) + 1)
-static int __init
-sl811h_probe(struct device *dev)
+int sl811h_probe(struct device *dev)
{
struct usb_hcd *hcd;
struct sl811 *sl811;
@@ -1665,10 +1679,15 @@
return -EINVAL;
}
+#ifdef CONFIG_USB_SL811_CS
+ addr_reg = (void *) addr->start;
+ data_reg = (void *) data->start;
+#else
if (!request_mem_region(addr->start, 1, hcd_name)) {
retval = -EBUSY;
goto err1;
}
+
addr_reg = ioremap(addr->start, resource_len(addr));
if (addr_reg == NULL) {
retval = -ENOMEM;
@@ -1679,11 +1698,13 @@
retval = -EBUSY;
goto err3;
}
- data_reg = ioremap(data->start, resource_len(addr));
+
+ data_reg = ioremap(data->start, resource_len(data));
if (data_reg == NULL) {
retval = -ENOMEM;
goto err4;
}
+#endif
/* allocate and initialize hcd */
hcd = usb_create_hcd(&sl811h_hc_driver, dev, dev->bus_id);
@@ -1724,7 +1745,7 @@
}
/* sl811s would need a different handler for this irq */
-#ifdef CONFIG_ARM
+#if !defined(CONFIG_USB_SL811_CS) && defined(CONFIG_ARM)
/* Cypress docs say the IRQ is IRQT_HIGH ... */
set_irq_type(irq, IRQT_RISING);
#endif
@@ -1738,6 +1759,7 @@
err6:
usb_put_hcd(hcd);
err5:
+#ifndef CONFIG_USB_SL811_CS
iounmap(data_reg);
err4:
release_mem_region(data->start, 1);
@@ -1746,9 +1768,11 @@
err2:
release_mem_region(addr->start, 1);
err1:
+#endif
DBG("init error, %d\n", retval);
return retval;
}
+EXPORT_SYMBOL (sl811h_probe);
#ifdef CONFIG_PM
@@ -1807,7 +1831,7 @@
#endif
-static struct device_driver sl811h_driver = {
+struct device_driver sl811h_driver = {
.name = (char *) hcd_name,
.bus = &platform_bus_type,
@@ -1817,6 +1841,7 @@
.suspend = sl811h_suspend,
.resume = sl811h_resume,
};
+EXPORT_SYMBOL(sl811h_driver);
/*-------------------------------------------------------------------------*/
