>Number: 164090
>Category: usb
>Synopsis: [umodem] [patch] Add sysctl with ucom unit number
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-usb
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Fri Jan 13 17:10:08 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Mykhaylo Yehorov
>Release: FreeBSD 9.0-RELEASE
>Organization:
>Environment:
FreeBSD atom.lan29.local 9.0-RELEASE FreeBSD 9.0-RELEASE #7: Fri Jan 13
15:18:21 EET 2012 [email protected]:/usr/obj/usr/src/sys/MINI_KVA384
i386
>Description:
Now there is no easy way to determine which tty device file is used by an
umodem device.
With the following patch the umodem driver will create sysctl node
dev.umodem.X.ucom. This sysctl will be helpful in devd scripts.
>How-To-Repeat:
>Fix:
Patch attached with submission follows:
--- orig/sys/dev/usb/serial/umodem.c 2011-11-11 06:20:22.000000000 +0200
+++ sys/dev/usb/serial/umodem.c 2012-01-03 13:06:14.371630639 +0200
@@ -169,6 +169,8 @@
uint8_t sc_cm_over_data;
uint8_t sc_cm_cap; /* CM capabilities */
uint8_t sc_acm_cap; /* ACM capabilities */
+
+ int ucom_unit;
};
static device_probe_t umodem_probe;
@@ -412,6 +414,13 @@
}
ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
+ sc->ucom_unit = sc->sc_super_ucom.sc_unit;
+
+ SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
+ SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
+ OID_AUTO, "ucom", CTLFLAG_RD,
+ &sc->ucom_unit, -1, "Attached ucom unit number");
+
return (0);
detach:
>Release-Note:
>Audit-Trail:
>Unformatted:
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