diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2011-02-17 13:17:55 +0100 |
|---|---|---|
| committer | Peter Stuge <peter@stuge.se> | 2011-09-15 15:16:04 +0200 |
| commit | c8c40bcbd22abca922ff31c4ed6a75fd7af78b59 (patch) | |
| tree | d32b0dfe25e9f3147d21d90ecd14f10fae483135 /libusb/core.c | |
| parent | 0db8cba7f2c372f0127c7df9724e5a35e93f2069 (diff) | |
| download | libusbx-c8c40bcbd22abca922ff31c4ed6a75fd7af78b59.tar.gz | |
Add new API function libusb_get_device_speed()
Reworked version of my earlier patch, largely modelled after (if not
copy and pasted from) Trygve Laugstøl's <trygvis@inamo.no> similar
commit 5a6541e0d80fb1f21e2b960bc2337a612f9d74fb in
git://git.libusb.org/libusb-trygvis.git
http://git.libusb.org/libusb-trygvis.git
http://git.libusb.org/?p=libusb-trygvis.git;a=commitdiff;h=5a6541e0d
This patch does not add any OS specific code. The supporting code in
each backend follows in separate patches. References #45.
Signed-off-By: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'libusb/core.c')
| -rw-r--r-- | libusb/core.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libusb/core.c b/libusb/core.c index 1dedb17..072d050 100644 --- a/libusb/core.c +++ b/libusb/core.c @@ -523,6 +523,7 @@ struct libusb_device *usbi_alloc_device(struct libusb_context *ctx, dev->ctx = ctx; dev->refcnt = 1; dev->session_data = session_id; + dev->speed = LIBUSB_SPEED_UNKNOWN; memset(&dev->os_priv, 0, priv_size); usbi_mutex_lock(&ctx->usb_devs_lock); @@ -680,6 +681,17 @@ uint8_t API_EXPORTED libusb_get_device_address(libusb_device *dev) return dev->device_address; } +/** \ingroup dev + * Get the negotiated connection speed for a device. + * \param dev a device + * \returns a \ref libusb_speed code, where LIBUSB_SPEED_UNKNOWN means that + * the OS doesn't know or doesn't support returning the negotiated speed. + */ +int API_EXPORTED libusb_get_device_speed(libusb_device *dev) +{ + return dev->speed; +} + static const struct libusb_endpoint_descriptor *find_endpoint( struct libusb_config_descriptor *config, unsigned char endpoint) { |