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Commit a77c53f2 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "USB: gadget: qti: Add support to update serial number"

parents 9bf0f1de e5bd655c

drivers/usb/gadget/legacy/qti_gadget.c

+14 −3
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ struct qti_usb_gadget { 
	struct device *dev;

};



extern char *saved_command_line;

static char manufacturer_string[256] = "Qualcomm Technologies, Inc";

module_param_string(manufacturer, manufacturer_string,

		    sizeof(manufacturer_string), 0644);
@@ -57,9 +58,6 @@ module_param_string(product, product_string, 
MODULE_PARM_DESC(quirks, "String representing product name");



static char serialno_string[256] = "12345";

module_param_string(serialno, serialno_string,

		    sizeof(serialno_string), 0644);

MODULE_PARM_DESC(quirks, "String representing name of manufacturer");



static char usb_pid_string[256];

module_param_string(usb_pid, usb_pid_string, sizeof(usb_pid_string), 0644);
@@ -476,6 +474,7 @@ static int qti_gadget_get_properties(struct qti_usb_gadget *gadget) 
	struct device *dev = gadget->dev;

	struct device_node *child = NULL;

	int ret = 0, val = 0, pid = 0;

	char *start = NULL, *end = NULL;



	ret = device_property_read_u32(dev, "qcom,vid", &val);

	if (ret) {
@@ -511,6 +510,18 @@ static int qti_gadget_get_properties(struct qti_usb_gadget *gadget) 


	pid = val;



	/* Extract serial # from kernel cmdline */

	start = strnstr(saved_command_line, "androidboot.serialno=",

			strlen(saved_command_line));

	if (start) {

		/* If serial # is at the end of the kernel cmdline

		 * it will be terminated by NULL character

		 */

		end = strchrnul(start, ' ');

		start += strlen("androidboot.serialno=");

		strlcpy(serialno_string, start, (end - start)+1);

	}



	/* Go through all the child nodes and find matching pid */

	while ((child = of_get_next_child(dev->of_node, child)) != NULL) {

		of_property_read_u32(child, "qcom,pid", &val);