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usb: gadget: u_serial: allow more console gadget ports

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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 <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Michał Mirosław
2019-08-10 10:42:51 +02:00
committed by Felipe Balbi
parent b417343c6a
commit d7cb8fb7aa
4 changed files with 97 additions and 0 deletions
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7
drivers/usb/gadget/function/u_serial.h
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@@ -58,6 +58,13 @@ int gserial_alloc_line_no_console(unsigned char *port_line);
int gserial_alloc_line(unsigned char *port_line);
void gserial_free_line(unsigned char port_line);
#ifdef CONFIG_U_SERIAL_CONSOLE
ssize_t gserial_set_console(unsigned char port_num, const char *page, size_t count);
ssize_t gserial_get_console(unsigned char port_num, char *page);
#endif /* CONFIG_U_SERIAL_CONSOLE */
/* connect/disconnect is handled by individual functions */
int gserial_connect(struct gserial *, u8 port_num);
void gserial_disconnect(struct gserial *);