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Introduce two more layers between device and endpoint:

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device -> active config -> claimed interface -> endpoints.
Device can have at most one active config. A config can have
multiple claimed interfaces, each with a specific alt setting.
An interface with an alt setting defines a list of endpoints.
This commit is contained in:
Sebastian Zagrodzki
2017-04-29 00:01:11 +02:00
parent d193e605a4
commit 5f122b4dcd
10 changed files with 309 additions and 250 deletions
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4
usb/fakelibusb_test.go
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@@ -214,6 +214,7 @@ func (f *fakeLibusb) control(*libusbDevHandle, time.Duration, uint8, uint8, uint
}
func (f *fakeLibusb) getConfig(*libusbDevHandle) (uint8, error) { return 1, nil }
func (f *fakeLibusb) setConfig(d *libusbDevHandle, cfg uint8) error {
debug.Printf("setConfig(%p, %d)\n", d, cfg)
f.mu.Lock()
defer f.mu.Unlock()
if len(f.claims[f.handles[d]]) != 0 {
@@ -230,6 +231,7 @@ func (f *fakeLibusb) getStringDesc(*libusbDevHandle, int) (string, error) {
func (f *fakeLibusb) setAutoDetach(*libusbDevHandle, int) error { return nil }
func (f *fakeLibusb) claim(d *libusbDevHandle, intf uint8) error {
debug.Printf("claim(%p, %d)\n", d, intf)
f.mu.Lock()
defer f.mu.Unlock()
c := f.claims[f.handles[d]]
@@ -241,6 +243,7 @@ func (f *fakeLibusb) claim(d *libusbDevHandle, intf uint8) error {
return nil
}
func (f *fakeLibusb) release(d *libusbDevHandle, intf uint8) {
debug.Printf("release(%p, %d)\n", d, intf)
f.mu.Lock()
defer f.mu.Unlock()
c := f.claims[f.handles[d]]
@@ -250,6 +253,7 @@ func (f *fakeLibusb) release(d *libusbDevHandle, intf uint8) {
c[intf] = false
}
func (f *fakeLibusb) setAlt(d *libusbDevHandle, intf, alt uint8) error {
debug.Printf("setAlt(%p, %d, %d)\n", d, intf, alt)
f.mu.Lock()
defer f.mu.Unlock()
if !f.claims[f.handles[d]][intf] {