From d7cb8fb7aa7dc47d1b751c17c15672068667053c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= Date: Sat, 10 Aug 2019 10:42:51 +0200 Subject: usb: gadget: u_serial: allow more console gadget ports MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Allow configuring more than one console using USB serial or ACM gadget. By default, only first (ttyGS0) is a console, but this may be changed using function's new "console" attribute. Signed-off-by: Michał Mirosław Signed-off-by: Felipe Balbi --- drivers/usb/gadget/function/f_acm.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers/usb/gadget/function/f_acm.c') diff --git a/drivers/usb/gadget/function/f_acm.c b/drivers/usb/gadget/function/f_acm.c index 9fc98de83624..7c152c28b26c 100644 --- a/drivers/usb/gadget/function/f_acm.c +++ b/drivers/usb/gadget/function/f_acm.c @@ -771,6 +771,24 @@ static struct configfs_item_operations acm_item_ops = { .release = acm_attr_release, }; +#ifdef CONFIG_U_SERIAL_CONSOLE + +static ssize_t f_acm_console_store(struct config_item *item, + const char *page, size_t count) +{ + return gserial_set_console(to_f_serial_opts(item)->port_num, + page, count); +} + +static ssize_t f_acm_console_show(struct config_item *item, char *page) +{ + return gserial_get_console(to_f_serial_opts(item)->port_num, page); +} + +CONFIGFS_ATTR(f_acm_, console); + +#endif /* CONFIG_U_SERIAL_CONSOLE */ + static ssize_t f_acm_port_num_show(struct config_item *item, char *page) { return sprintf(page, "%u\n", to_f_serial_opts(item)->port_num); @@ -779,6 +797,9 @@ static ssize_t f_acm_port_num_show(struct config_item *item, char *page) CONFIGFS_ATTR_RO(f_acm_, port_num); static struct configfs_attribute *acm_attrs[] = { +#ifdef CONFIG_U_SERIAL_CONSOLE + &f_acm_attr_console, +#endif &f_acm_attr_port_num, NULL, }; -- cgit v1.2.3