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Better error messages.

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Update rawread to use the new endpoint interface.
This commit is contained in:
Sebastian Zagrodzki
2017-04-29 00:41:26 +02:00
parent 1fd4e7f4c4
commit 80f3c60b2b
4 changed files with 21 additions and 6 deletions
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4
usb/config.go
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@@ -94,11 +94,11 @@ func (c *Config) Interface(intf, alt int) (*Interface, error) {
return nil, fmt.Errorf("Interface(%d, %d) called on %s after Close", intf, alt, c)
}
if intf < 0 || intf >= len(c.Info.Interfaces) {
return nil, fmt.Errorf("interface %d not found in %s. Interface number needs to be a 0-based index into the interface table, which has %d elements.", intf, c, len(c.Info.Interfaces))
return nil, fmt.Errorf("interface %d not found in %s, available interfaces 0..%d", intf, c, len(c.Info.Interfaces)-1)
}
ifInfo := c.Info.Interfaces[intf]
if alt < 0 || alt >= len(ifInfo.AltSettings) {
return nil, fmt.Errorf("Inteface %d does not have alternate setting %d. Alt setting needs to be a 0-based index into the settings table, which has %d elements.", ifInfo, alt, len(ifInfo.AltSettings))
return nil, fmt.Errorf("alternate setting %d not found for %s in %s, available alt settings 0..%d", alt, ifInfo, c, len(ifInfo.AltSettings)-1)
}
c.mu.Lock()