linux-kernel - [PATCH 4.19 09/97] USB: misc: iowarrior: add support for 2 OEMed devices

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Date:   Thu, 27 Feb 2020 14:36:17 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Christoph Jung <jung@...emercs.com>
Subject: [PATCH 4.19 09/97] USB: misc: iowarrior: add support for 2 OEMed devices

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

commit 461d8deb26a7d70254bc0391feb4fd8a95e674e8 upstream.

Add support for two OEM devices that are identical to existing
IO-Warrior devices, except for the USB device id.

Cc: Christoph Jung <jung@...emercs.com>
Cc: stable <stable@...r.kernel.org>
Link: https://lore.kernel.org/r/20200212040422.2991-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/misc/iowarrior.c |   15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -34,6 +34,10 @@
 /* full speed iowarrior */
 #define USB_DEVICE_ID_CODEMERCS_IOW56	0x1503
 
+/* OEMed devices */
+#define USB_DEVICE_ID_CODEMERCS_IOW24SAG	0x158a
+#define USB_DEVICE_ID_CODEMERCS_IOW56AM		0x158b
+
 /* Get a minor range for your devices from the usb maintainer */
 #ifdef CONFIG_USB_DYNAMIC_MINORS
 #define IOWARRIOR_MINOR_BASE	0
@@ -137,6 +141,8 @@ static const struct usb_device_id iowarr
 	{USB_DEVICE(USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOWPV1)},
 	{USB_DEVICE(USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOWPV2)},
 	{USB_DEVICE(USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW56)},
+	{USB_DEVICE(USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24SAG)},
+	{USB_DEVICE(USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW56AM)},
 	{}			/* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, iowarrior_ids);
@@ -361,6 +367,7 @@ static ssize_t iowarrior_write(struct fi
 	}
 	switch (dev->product_id) {
 	case USB_DEVICE_ID_CODEMERCS_IOW24:
+	case USB_DEVICE_ID_CODEMERCS_IOW24SAG:
 	case USB_DEVICE_ID_CODEMERCS_IOWPV1:
 	case USB_DEVICE_ID_CODEMERCS_IOWPV2:
 	case USB_DEVICE_ID_CODEMERCS_IOW40:
@@ -375,6 +382,7 @@ static ssize_t iowarrior_write(struct fi
 		goto exit;
 		break;
 	case USB_DEVICE_ID_CODEMERCS_IOW56:
+	case USB_DEVICE_ID_CODEMERCS_IOW56AM:
 		/* The IOW56 uses asynchronous IO and more urbs */
 		if (atomic_read(&dev->write_busy) == MAX_WRITES_IN_FLIGHT) {
 			/* Wait until we are below the limit for submitted urbs */
@@ -499,6 +507,7 @@ static long iowarrior_ioctl(struct file
 	switch (cmd) {
 	case IOW_WRITE:
 		if (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW24 ||
+		    dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW24SAG ||
 		    dev->product_id == USB_DEVICE_ID_CODEMERCS_IOWPV1 ||
 		    dev->product_id == USB_DEVICE_ID_CODEMERCS_IOWPV2 ||
 		    dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW40) {
@@ -782,7 +791,8 @@ static int iowarrior_probe(struct usb_in
 		goto error;
 	}
 
-	if (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56) {
+	if ((dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56) ||
+	    (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56AM)) {
 		res = usb_find_last_int_out_endpoint(iface_desc,
 				&dev->int_out_endpoint);
 		if (res) {
@@ -795,7 +805,8 @@ static int iowarrior_probe(struct usb_in
 	/* we have to check the report_size often, so remember it in the endianness suitable for our machine */
 	dev->report_size = usb_endpoint_maxp(dev->int_in_endpoint);
 	if ((dev->interface->cur_altsetting->desc.bInterfaceNumber == 0) &&
-	    (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56))
+	    ((dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56) ||
+	     (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56AM)))
 		/* IOWarrior56 has wMaxPacketSize different from report size */
 		dev->report_size = 7;