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authorGreg Kroah-Hartman <gregkh@suse.de>2005-11-17 09:48:18 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-17 11:29:55 -0800
commitbb833986674ce1fc1b237b3d81459511ad2df393 (patch)
treedca61cffabb03ab262be578f6e6d3b446383afbf /drivers/usb/serial/anydata.c
parent2d117403ae4006eeeb9037b82e9ecd8b3b043584 (diff)
[PATCH] USB: add the anydata usb-serial driver
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/usb/serial/anydata.c')
-rw-r--r--drivers/usb/serial/anydata.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/usb/serial/anydata.c b/drivers/usb/serial/anydata.c
new file mode 100644
index 00000000000..18022a74a3d
--- /dev/null
+++ b/drivers/usb/serial/anydata.c
@@ -0,0 +1,123 @@
+/*
+ * AnyData CDMA Serial USB driver
+ *
+ * Copyright (C) 2005 Greg Kroah-Hartman <gregkh@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include "usb-serial.h"
+
+static struct usb_device_id id_table [] = {
+ { USB_DEVICE(0x16d5, 0x6501) }, /* AirData CDMA device */
+ { },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+/* if overridden by the user, then use their value for the size of the
+ * read and write urbs */
+static int buffer_size;
+static int debug;
+
+static struct usb_driver anydata_driver = {
+ .owner = THIS_MODULE,
+ .name = "anydata",
+ .probe = usb_serial_probe,
+ .disconnect = usb_serial_disconnect,
+ .id_table = id_table,
+};
+
+static int anydata_open(struct usb_serial_port *port, struct file *filp)
+{
+ char *buffer;
+ int result = 0;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ if (buffer_size) {
+ /* override the default buffer sizes */
+ buffer = kmalloc(buffer_size, GFP_KERNEL);
+ if (!buffer) {
+ dev_err(&port->dev, "%s - out of memory.\n",
+ __FUNCTION__);
+ return -ENOMEM;
+ }
+ kfree (port->read_urb->transfer_buffer);
+ port->read_urb->transfer_buffer = buffer;
+ port->read_urb->transfer_buffer_length = buffer_size;
+
+ buffer = kmalloc(buffer_size, GFP_KERNEL);
+ if (!buffer) {
+ dev_err(&port->dev, "%s - out of memory.\n",
+ __FUNCTION__);
+ return -ENOMEM;
+ }
+ kfree (port->write_urb->transfer_buffer);
+ port->write_urb->transfer_buffer = buffer;
+ port->write_urb->transfer_buffer_length = buffer_size;
+ port->bulk_out_size = buffer_size;
+ }
+
+ /* Start reading from the device */
+ usb_fill_bulk_urb(port->read_urb, port->serial->dev,
+ usb_rcvbulkpipe(port->serial->dev,
+ port->bulk_in_endpointAddress),
+ port->read_urb->transfer_buffer,
+ port->read_urb->transfer_buffer_length,
+ usb_serial_generic_write_bulk_callback, port);
+ result = usb_submit_urb(port->read_urb, GFP_KERNEL);
+ if (result)
+ dev_err(&port->dev,
+ "%s - failed submitting read urb, error %d\n",
+ __FUNCTION__, result);
+
+ return result;
+}
+
+static struct usb_serial_driver anydata_device = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "anydata",
+ },
+ .id_table = id_table,
+ .num_interrupt_in = NUM_DONT_CARE,
+ .num_bulk_in = NUM_DONT_CARE,
+ .num_bulk_out = NUM_DONT_CARE,
+ .num_ports = 1,
+ .open = anydata_open,
+};
+
+static int __init anydata_init(void)
+{
+ int retval;
+
+ retval = usb_serial_register(&anydata_device);
+ if (retval)
+ return retval;
+ retval = usb_register(&anydata_driver);
+ if (retval)
+ usb_serial_deregister(&anydata_device);
+ return retval;
+}
+
+static void __exit anydata_exit(void)
+{
+ usb_deregister(&anydata_driver);
+ usb_serial_deregister(&anydata_device);
+}
+
+module_init(anydata_init);
+module_exit(anydata_exit);
+MODULE_LICENSE("GPL");
+
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug enabled or not");
+module_param(buffer_size, int, 0);
+MODULE_PARM_DESC(buffer_size, "Size of the transfer buffers");